Showing posts with label math. Show all posts
Showing posts with label math. Show all posts

Thursday, July 30, 2009

Uukh Galbi!

I haven't felt like blogging of late (obviously, lol). I've kinda been enjoying the freedom of not only being liberated from summer course but also my arch nemesis : Business Mathematics. Yes, I can hardly believe it myself (ALHAMDILLAH) that I finally - somehow- managed to pass BM. I gotta hand it to the professor though, he was a bad ass at explaining. Way better than the previous two lady professors I had. I almost wanna believe the sexist saying that male math teachers are the better of the sexes.. big exception will be made for BW - of course, cuz she had the power to make me understand lots ;) But yeah, I'm glad that's behind me.

Mostly since the end of summer course I've been playing tennis, loads of PS2 soccer (football to the rest of the world) - I found this option where u play in this like career mode and you get to create your player including his name and appearance, kinda like SIMS. So yeah I kinda got addicted to it and play everyday.

About the only productive thing I get done is attending art classes in the mornings (w3, I am so not a morning person). Its fun though. We're learning so much cool (useless) stuff. We also take Arabic calligraphy. I like that alot as well. It calms me down when I'm moody.

I've decided (though I haven't actually done anything yet) to go back to Quran classes and seriously memorize. I figure its about time I got holy and did something that would help me in the afterlife. I'm looking forward to that inshallah. I miss the feeling of doing something that actually matters.

In other news, I've been job hunting. Unemployment doesnt suit me =P I scored an interview for Sunday. Khair inshallah.

I found an interesting story about my favorite sportswear company, Adidas. And then read a very retarded story in Gulf News. I mean all these copyrighted things still make tons of money and there will always be people out there who have to have the originals of certain things and will still put money into those things even if they already have a downloaded version. (I mean sometimes I have the original of something and I go and download it from torrents or whatever so that I can use it on my comp/phone/ipod, whatever makes life easier) They should stop being such tight asses about it and live their lives.

Lastly, I'll leave you guys with a Fares Karam clip. Its music, and while I dont usually listen to music unless its like on tv (which is where I first heard this clip) or whatever, I found the lyrics so cute...


Thursday, June 11, 2009

Like You Mean It

So the first week of summer course has gone by. Aside from the frequent cluster headaches I've been getting and the fact that the class is a whole hour AND 40 mins long.. math classes have actually been quite interesting. The class is totally on the guy's campus (which is freakin awkward and just plain weird) and we, of course, have guys in the class. A very half-assed partition separates the sexes (I so need to snap a shot for you guys's viewing pleasure!) which is like the joke of the whole school. There are uniformed guards all over - I imagine to 'keep the peace' haha. Right. I wonder how they would describe the status of UoS now? ... "Controlled Co-ed".

Anyways, like I was saying, the classes have been interesting to say the least. We got a guy professor this time around. I know we aren't supposed to be sexist when it comes to math teachers and all but its becoming quite apparent that they are the better teachers in regards to math anyways. The guy teacher at the institute I was going to in Dubai for tutoring sessions was like a mathematical Einstein. When he explained, I understood. When things were difficult, he spoke ENGLISH. Our professor for this semester speaks English as well. Not that any of my other professors or tutors spoke/taught in other languages but they may as well have been for all I understood from them. It was frustrating really.

I think this may also be the first time I was actually present for the first math chapter. I don 't remember studying about the basics of the straight line the previous times. Despite only having spent a week with this new professor, I think I like him. He's got a really short volatile temper. Reminds me of Tony Soprano's temper. It doesnt help much that he kinda slurs words together like Soprano as well. The first day (Monday) he was going through the course syllabus and introduction (in English) like a normal professor and then suddenly he starts yelling all this angry arabic. It took me a minute to register that that was definitely not part of the lecture. I look up from the syllabus hand-out to see him waving around a small black thing. Turned out to be someone's mobile. Apparently while he was going thru the syllabus one of the boys was getting in quality talk time on his phone. It was pretty funny. But just as quickly as he was set off he had calmed down and was smiling again. Lol. Tuesday the lecture went by with out a hitch. Wednesday we had a quiz. We knew we were having a quiz that day. So everyone went in and sat down and we were like waiting for him to pass out the quiz papers. Instead he surprised us all and told us to get out our own sheets of paper, write our names and IDs on them and then copy the quiz question he was going to write on the board. I was thinking Oh Wow we are all sitting next to each other (like usually they make us sit at alternate desks and stuff) so just before we start his angry alter ego "Mr. Soprano" (fitting name) comes out and threatens that if we attempt in any way...even if he so much as 'thinks' we are attempting, we'd get a zero. Then he adds that with him there are 'two' zeros - a red zero and a yellow zero... I imagine it must be something along the lines of Soccer (football to the rest of u guys ;P) with their red and yellow cards lol. So he wraps up with 'You all be careful.' I almost felt sorry for the girl beside me cuz even if she wanted to cheat, i'd be like the last person she'd wanna cheat from! When I saw the question my brain immediately froze. Like what the hell? I knew that I knew how to solve it and it was a relatively easy problem but I was having trouble remembering how to go about doing that. In the end though, I put down pretty much all of the correct answer except for the last part of the equation. I guess I'll see on Sunday how much leaving out parts of equations cost in marks.. After the quiz we carried on with the lesson as usual. Like half hour before the end of class the teacher makes this swift movement on the boys' side of the partition and next thing he slams a familiar black device on his desk. He's glaring angerily at the boys' side but says nothing surprisingly. Instead he turns back to the board and starts writing again. Once he finished writing, he opens his mouth to speak and I imagined he'd be explaining what he had just written - and maybe thats what he had originally wanted to do but the object on his desk caught his eye and set him off. Haha. There was no stopping him. He went on and on about how rude and wrong it is for someone to be using their phone while in a lecture. And the retarded guy he took the phone from was arguing his case saying he wasnt doing anything like texting. He claimed he was just receiving. Oh the professor loved that. His face got all red and his eyes turned mini-saucers and he looked like he was ready to drag the kid out by his ear and drag him all the way to that great and mighty (cough cough) chancellor of ours. And like everytime he seemed like he was winding down to continue the guy argued some more. A couple of girls grinned. A few giggled. I tried my best not to laugh, smile grin or look amused but in all honesty it was hilarious. And what's more, it was the same boy from the first lesson with the phone. Some ppl just dont learn, sadly. I guess its a good thing though, it makes the hour and 40 mins a little less mundane. ;)

This summer promises to be very busy, aside from summer course. I registered for art & calligraphy classes. I'm going to finally learn to swim (though I still very much hate that sport). I'm also going to try and finish my new novel -which entails learning welsh and perhaps gaelic or latin. Should be fun I hope. Oh, and I got an invitation letter from this cadet pilot programme I registered for. I had signed on ever since last year, I was really depressed and needed a change of routine so that was like the most random spontaneous thing I could do. I'm not as interested in it any more but since I have the invitation letter I may as well go on for the assessment test and see how far I get. They say its 6 aptitude tests that you have to take in 4hours and based on ur performance on them you get to move to the next round/part of assessment which is held on a different day. It'll be interesting at least - I wonder if I'll be the only female there...

I need to go put some honest hours into my neglected novel - and most probably play sims 2 ;)

Laters ^^

Sunday, May 04, 2008

GJC

Gauss, Jordan and Cramer... the culprits responsible for the headache threatening to split my head into separate continents - curses be upon them. Seriously what the hell?!?! I so don't get what their obsession is with putting zeros in fields that clearly have whole numbers. Celebrated freaks with painfully obvious number fetishes... Thankfully the teacher only called on me to read out the orginal equation.
I'm starting to feel a bit bad for her though. When she's not yelling or questioning why I can't answer such "simple" questions she's actually kinda nice. My classmates got her pretty heated last month (or maybe it was in March) anywayz it was over a quiz. She got so mad that she said she wasn't giving us anymore quizzes and would grade us according to how we scored on the previous quizzes (none of which I managed passing grades). The few girls that were doing really badly had already dropped the course. So basically the no quiz thing was probably going to only have an effect on me - or not, given my performance with them. She has since brought them back and I have resumed scoring perfect zeros. The quiz before last she seemed pretty fed up with me, probably with all due right since the paper was totally blank except for my name and student ID.. She told me she is trying to help me and that is how I am helping her. (she still doesn't know that I dropped the course..) So come Tuesday (last week) I scored a 6/20 - improvement over zero but still failed unfortunately. Afterwards she announced that she had some good news. She told us that the university was allowing her to introduce the grading curve so she would be able to give us 'push ups' in our marks. In a way I kinda regret quitting so easily but given the fate I have even if she did give us this grading curve I'd probably still end up with an F... definitely sux to be me. I wonder if she'll be happy to see me again next semester?
I'm really starting to miss that darn coach. Not her herself, just her barking and the exercise. I feel old, sluggish and lazy. I miss my teammates also, heck even 'the musris'... gosh how shameful, and I was the one grumbling the most about how I'd quit and not return when she got back.
This summer (INSHALLA I won't get sick this time) I so plan to lose weight and by next year maybe you guys will read about my wedding :: grins ::..
Well that's for summer, which hasn't started yet, right now though I am seriously craving PEANUT BUTTER COOKIES!!!!!!!
Time to search for some panadols..

Wednesday, April 02, 2008

1 + 1 = -20

The pic is ironically true, least when math is involved. My lab partner (also MIS major) said she finished with accounting I & II and also took Business Math. She doesn't seem to be the study-holic type and I don't think she is. So I asked her how did she find them. She told me BM wasn't so difficult, but it wasn't easy either. I asked what her final grade in it was and she said she got C. I think "Wow" might have actually escaped my lips. I mean for me I don't even like to get B's much less a C but I'd be plenty happy if I managed to get even a D in it (C in the case of math would be totally great). I still feel pretty badly about the first midterm and call me crazy, but, I am thinking that if I do actually pass this semester (Inshalla I really hope I do, I want to take Business Programming in the summer but BM is a prerequisite for it unfortunately) I'd repeat it the next semester or after so I could have a chance at getting an A or *cough cough* at very least a B if it just isn't my destiny to get an A. My partner told me accounting was "very ok" though and that the professor was a really nice guy and all. The way she painted it was a bit reassuring though I can't say I'm actually looking forward to it. Why the heck does MIS have to contain so much math and math-related subjects??? Couldn't they just split it into two streams, like have MIS: math and MIS: non-math... I should just shut my mouth and "shid 7eeli" as I've been told to do.
The week before last I suddenly woke up one morning and felt the crappiest I'd felt in a long time. I'd get really depressed last year and even though I knew the reasons for my moods or partly what was causing them I haven't had it that bad in awhile and thought maybe it was something that just went away. Back then when it used to happen I'd feel like I was losing interest in things and couldn't handle being around most people. This time it was that and more, 10 fold. I didn't wanna see or talk to anyone and I was starting to hate them all, including ppl who are my friends. I was dangerously close to quitting uni, seriously, the place I've dreamed about for years and just like that would have quit. In the end I decided I'd just quit math, I was sure it was partly the cause for the way I was feeling anyway. I should thank my former class rival for not quitting in the end - her AND believe or not one of my tennis teammates who had been one of my least favorites (Coach really is a ________ - fill in the blank, but for the past few months she's been throwing me and that mate together on the same side of the court and inevitably we've been doing a bit of "bonding". Turns out she's actually pretty fun to be paired with and if I had any doubts of burying the hachet, they've been expelled now.). After all of that I went and found a math article and read it. Was interesting and made me feel a little motivated after I did some of the things that were suggested in it but now that I think about it 90% of it was crock-sheemot. It stressed that ppl who are good at math and love it aren't born good in math and it's not about having a brain that is predisposed to math and the ability to understand it. I believe that to be grossly untrue - unless of course I'm just uncommonly stupid when it comes to math - I'll leave that verdict for after I complete all my math requirements for MIS.
Enough talk about math. I think I may have finally found out what it is I need to do to finally be able to beat my original tennis rival again. Somewhere I picked up returning with really sick air or rather in tennis-speak "lobbing". It didn't bother me at first but now it drives me crazy when I go to return and the ball goes really high giving the receiver plenty of time to get comfortably in position and send back a perfect return. BW called me out to play last night. I was still feeling moody when she had asked but said yes - I mean seriously being a person that really hates sunlight, even in that mood it would have been impossible to refuse an offer to play tennis at such a perfect time like 7 (after dark). I'm glad she offered and I'm glad I accepted cuz it was fun and put the last of that mood behind me. Plus, I got two great things yesterday, a new shot (still needs practice) and I think I've figured out how to "lower" my returns - by holding the racket and hitting the ball similar to how I held and hit in baseball. It was working but needs practice. I also figured out what my underspin return needs to be unreachable.. of course that also needs practice. Gosh, it's so much more fun to go to tennis outside of the team practice. Team practice has become dead boring with nothing more than the coach barking orders and being a pain in the ass.
How tired am I! I think I am going to get a sleeping bag. Ha, with an inflatable pillow. That would solve the problems of this bed-less uni - for me anyways, lol. I'm sure by next semester it would have spread like wild fire and then everyone will be getting sleeping bags. Then the fashion war would break out, cuz after everyone has it's just too boring and someone has to go fan the fire. Bedlum would ensue with girls going to great lengths to out do each other with SBs being brought with outragous designs, by name brand designers, from every exotic corner in the world u name it and they'll go for it and at the bottom of all the craze will be me with my original cheap Carrefore (most likely, lol) SB sitting back and laughing like the devil I am at having started such a fad-war at uni. ::YAWNS:: In the end I'm still tired despite the lively image I've just painted.
I have class in a few minutes, so I should probably put my beloved Lt away, splash some water and hope I don't snore in his class.

Tuesday, March 04, 2008

How Far?

"How far can I go without turning back..?" It was the question Yuta Takemoto often asked himself during the series. It's a question I find myself pondering at this hour of the night.

There's no question as to what I want anymore, I love UoS, and yes I am fully aware of the fact that they have limited choices in regards to majors offered and the registration office and processes/procedures can be hectic and irritating little pains in the ass but despite that I still love the place and it's where I want to be right now - putting aside talk of Canada. Last summer I started feeling irritated and doubtful about my major, English, it was never something I had in mind to study and it was just a spur of the moment choice at the time the university application was placed in front of me. When I was 13 I had made up my mind that I had wanted to study Computer Science. As I got older that aspiration matured into wanting to study IT. That was my dream. I love computers and everything that pertains to them so that sounded like the most amazing thing. Somewhere down the road though, I got hooked on and obsessed with Psychology. It completely captured my heart and desires. Forgotten was IT, replaced by this new intriguing prospect. Sure it wouldn't have been as flashy or sophisticated sounding as a career in IT but hey Psychology would help me understand why the world is going to hell and ppl seem to be ok with that. While I was taking my sweet time finishing HS I began to realize that Psychology isn't exactly a major that is offered here - least not in the universities I wanted to go to and if the university had it, it was only as a minor and not major. I wasn't sure what I was going to do then but I knew I definitely wasn't doing a distance degree (online university). I contemplated the idea of going to Canada but truth is I really love UAE and feel a sorta "homesickness" when I leave (when I visited my sister in Kuwait for only 2 weeks I could think of nothing more than how much I missed my cat, Jassim, and UAE). Then one summer, BW gave me an anime to watch. She said it was interesting and from what she described of it, it sounded as such. It was the same Honey & Clover I mentioned at the beginning of this post. If you didn't follow the link and you haven't seen it before, it was about some students in an art university. I found the student who was majoring in Interior Design to be very interesting. I was drooling over his internship at an Interior Design company and from that point on I decided since Interior Design is a major that is readily available in almost all the universities here that was what I'd go for.

I'm not going to get into why I chose UoS but it was a major turn off to learn that the Fine Arts College there is Co-ed so I knew I certainly wasn't going to do Interior Design there. I had already made up my mind though that I was going to study in UoS so now it was only to decide what to study. UoS certainly didn't have Psychology nor did it have my first love, IT, as majors. What I saw when I opened the uni catalog to make my final decision was Computer Science. The study plan played a major role in the major I finally settled on, which was English - reason being it was the only major in the whole book that didn't require a single math course. Of course with a prospect like that I dived in head first without a moment's thought. The registration lady told me I had to write down two choices, so English went as my first and Computer Science as my second choice.

So you see, English was never something I had planned to study, wasn't anywhere on my wish list. Then going through a pretty boring semester of foundation courses and then finding out we didn't get internships in the English Dept. (Heck that was one of the reasons I wanted to GO to uni rather than do a boring correspondence university degree.) I scanned the university catalog over and over last summer after my first semester. I considered Visual Media from the Communications College and then Public Administration from the Business College but both turned out to be in all arabic. I kept going back to Computer Science, but the math was really no joke. Then I had a bright idea, and thought about architectural engineer. They probably get really interesting internships and then have interesting jobs later. Again MATH. I resigned myself to the fate of English after that and promised I'd have to go study Psychology elsewhere to make up for the boring English major. (I'd come back here every holiday I got and after graduating I'd have definitely come straight back here.)

Last semester there turned out to be a shortage in classes we could take (I was late registering and there wasn't really much left to choose from) so myself and two of my classmates went searching for courses we could take as free electives from the other colleges. One of them found a course called Intro. to MIS. So we all signed up for it.

I only got to attend 2 or 3 of the classes before I was called by the registration for a "violation". The registar lady told me since I hadn't taken Intro. to IT in my first semester I'd have to take it then and I had to drop Intro. to MIS because IT was a prerequisite for the MIS course. I was really upset. Even though I had only taken 2 or 3 classes I had already fallen deeply in love with it. Everything happens for a reason though... I was looking in the uni catalog to find a replacement course for the Intro to MIS that I had to drop and I saw that MIS was a major in the Business College. Freakin' AMAZING. I was imagining how interesting that must be to have it as a Major - just imagine the internships they must get?! I went immediately to the registar and asked her if I could change my major and what were the procedures. She told me I was too late and would have to wait till the following semester. I was bummed at first, then I realized there were like 7 math courses in the study plan for MIS majors. I thought and thought about that fact. Till this sudden impulse yelled "Screw it! Face your fears" One of my classmates said something similar to that and encouraged me not to let something like math hold me back from doing something I'd enjoy. I made up my mind I was going to go for it. Then during the semester I had serious doubts and wasn't sure what I wanted anymore, and as always I have BW to thank for being the voice of reason when my reasoning is being unreasonable. By the end of the semester I was 180% sure that I wanted to go thru with changing my major to MIS and that I wasn't going to let the fact that it had math courses in it keep me from it.

I was totally psyched about it and even got the text book for the first math course I'd be required to take. All my classmates laughed at me. I tried explaining to them that I brought the book so I could at least study it from then until the following semester, this way I'd have a headstart and would at least have some clue as to what I was supposed to be doing. Of course they didn't understand that. No one understands how far down below average my mathematical skills are. Last semester I opened the book once, read 2 paragraphs, shut the book and dropped it under a pile of junk - that's how frustrated I was with how much I understood from it, which was zilch. Despite that, I changed my major anywayz - a decision, I, in no way, shape or form, regret.

I promised myself I'd study really hard and pass math and if it turned out to be really hard - well, I'd just study harder. BW offered to help me when she can and I admit I was reluctant at first to accept that offer. All the previous times I had help with math or tutors for it they'd explain and explain and explain and no matter how hard I tried to follow I could never keep up. The last thing I wanted was to have her wasting her time trying to help me with the impossible when the end result was always the same; me feeling extremely dumb and supremely frustrated. I began to wonder - and even then it wasn't so much wondering as I was sure that I wasn't "normal" when it came down to math and that maybe there was a form of dyslexia that worked in the numbers department rather than the usual literary one it beseiged.

The first math class I attended, the teacher called on me to answer something that was on the board. It was a simple single digit answer I had to give. I got it wrong (of course) and I'm guessing my answer was so far off that everyone (They all turned around to see who gave that answer) was wondering if I was truly and seriously that stupid or just trying to be funny.
Then the first night I showed BW what it was I had to study, she went over it with me and explained it all to me in the simplest of terms and as I had feared; nothing sank in. I went home, opened the book and not long afterwards, closed it. I couldn't make sense of anything.
The second time she sat with me, I was so ready to call it off and contemplated dropping the math course all together.. Ha, she must have sensed that somehow cuz the things she said that night were enough to light a fire under me and get me motivated enough to really put my everything into trying to understand math.
By the third and fourth times I was surprised to find that little things were starting to sink in. Things I had never understood before and were now beginning to make some sort of logical sense. For that I have to thank both, BW and a (former) classmate of mine who sometimes helps me in the car on our way to uni in the mornings. That improvement, though I bet it was really small, in comparison to what I should know, felt huge to me and it was more than enough to make me feel like I actually wanted to put more effort into understanding the concepts. I started spending my breaks between classes solving equations. At first more were wrong than were right but the more carefully I worked the closer to correct my answers became until I started coming up with correct answers on first tries. I started practicing solving equations before going to bed every night and then one night it was way after 2am and I was tired but felt reluctant to go to bed. It was like the reluctance to stop when you're in the middle of watching an interesting show/movie/anime or playing a vid game and are on a high level... I was ACTUALLY "enjoying" solving equations - and not just solving but ending up with the CORRECT answers for the first time in a very long time.
That was two weeks ago - or maybe 3 by now. Last week I had become so totally obsessed with practicing and solving equations that I kept the book and blank papers beside my bed and equations were the last thing I looked at before I slept and the first thing I touched in the morning. There was only one problem; I was getting the right answers and all BUT it was taking me 40+ mins for each equation. The time we are allowed for the midterms is only 50mins and there was no way in hell that the midterm would only have one question on it so I was doomed, I thought. All my hard work for abso-freakin-lutely NOTHING. Give up I had, though shameful to admit.. BW told me to practice while timing myself and my prob would be solved. I did nothing that day but solve and note times and it worked! I felt confident almost to the point of being cocky and was actually looking forward to the exam. Scoring 3/4s of whatever mark the midterm was out of would have made my semester (though I wouldn't want that for any of my other subjects - that would be an amazing score for me in math.)
Gosh, I've gone on quite a bit haven't I? I'm trying hard not to rant, but those of you who know me probably have already guessed I am really upset at the moment. Does it still count as a "rant" if you are trying to keep it under control and not just write whatever angry thoughts come to mind???
Maybe I should just stop here and go to bed, it's already after 2am and the cursed math class is at bloody 8 in the morning...

Sunday, March 02, 2008

Dreaming of Espresso

A double espresso with milk would be absolutely amazing at the moment. Drained doesn't even describe the feeling at the moment. I spent my break today solving random equations on finding the equilibrium price and quantity of each. I reviewed both of the topics, then went over the section about black market profits. I then timed myself to see how fast I could solve each equation with it's multiple parts. I got my time down from 11mins to 6mins to 5 mins to finally 3mins. Then I tried to solve the final equation which introduced Black Market Profits and my time jumped back up to 7mins - and on top of that the answer I came up with was totally wrong.

Those of you who know me are probably wondering what the heck is going on.. well yes this is me actually "talking" about math. Amazingly I am starting to get the hang of it and actually find solving equations and getting the "correct" answer somewhat satisfying... In the end though I do feel like I am progressing alot (huge thanx to BW) it doesn't really cover the very vivid truth though.

Truth is, I'm worried - with all due right of course. Tomorrow is the feared Business Math midterm. I've been working my ass off for it and still end up making little stupid mistakes that add up and mean big mistakes. I thought I had at least scored a 10/20 on my last math quiz (quiz 2). I got the paper back today and was pretty surprised to find otherwise. I had practiced even more on Thursday evening (with BW) and on most of Friday, so I figured now I must be able to spot my mistakes. I couldn't wait till class ended so I could sit down and try and come up with the correct answer without having to ask BW what my mistake was.

WARNING: IF YOU HAVE STRONG FEELINGS AGAINST MATH, THEN IT IS HIGHLY ADVISABLE THAT YOU DO NOT ADVANCE BEYOND THIS POINT...

...YOU'VE BEEN WARNED.....

This is what quiz 2 looked like. It started with this equation:


P = -2Q + 50

P = 1/2Q + 25

a) Determine the equilibrium price and quantity.

b) Calculate the tax paid by the consumer and by the producer.

This is what I did (after the teacher marked my paper 8/ 20 [4 mark improvement over 4/20] ):


P = -2Q + 50 = 1/2Q + 25

50 – 25 = ½ Q + 2Q

25 = 2.50Q

25/2.50 = 2.50Q/2.50

10=Q

My original mistake had been calculating 25/2.50 in my head, and somehow 2.50 being half of 5 became half in my head so I solved it as 25/0.5 . So fine this time I caught my original mistake, but then when I got to finding the equilibrium price I found something else wasn't right.

Pd = -2Q + 50

= -2(10) +50

= 20 + 50

Pd = 70

Ps = ½ Q + 25

= 0.5(10) + 25

= 5 + 25

Ps = 30

In the end Pd is supposed to equal Ps.. I couldn't understand why the hell that wasn't happening. I thought about it for a while and wondered if maybe the original equation was supposed to read:

P = -2Q - 50

P = 1/2Q + 25

I tried the new "fixed" equation and came up with:

P = -2Q – 50 = ½ Q + 25

= -2 Q – 50 = 0.5Q + 25

= -25 – 50 = 0.5 + 2Q

= 25/2.50 = 2.50Q/2.50

10 = Q


Pd = -2Q – 50

= -2(10) – 50

= -20 – 50

= 30

Then both equations (Pd & Ps) would come down to the same thing (30). And the answer to part (a) of the quiz would have been

Equilibrium Price = 30
Quantity = 10

So now my question is: did the teacher really make a mistake like that???