beat: douchey math teacher doesnt understand math (mspaint fun inside)

[boomshakalaka]

Disputed problem from test below **

Ok so I have to take intermediate algebra here at culinary school. I havent taken math since junior year of highschool, about 5 years ago. I dont particularly like math, but its good to have a refresher course. Its all pretty simple stuff so far.

Anyways, the teacher is some schmuck thats not permanent staff, but instead just a temp like most of the gen ed people here. Hes constantly doing stuff on the board and messing up. Making things that should be negative positive and vice versa. He always gets a bit flustered when he is corrected and gets really defensive. This has gone on for a few weeks and Ive come to the conclusion that he is just and incompetent jerktard that cant bear to be incorrect.

So today we get a test back. A lot of the problems were on previous quizes. One of which I got wrong both times, yet both times I thought I gave a good answer. The one on the test I think was perfect. While we are going over the test Im trying to ask about this question and he gets upset and says hes not going to go over each problem right now, but after we finish going over the test as a class he will talk to us individually. This seems retarded to me because clearly lots of people had problems with this, but whatever hes the teacher not me. When he did do this problem on the board though I realized that without a doubt he is a retard and doesnt understand math and/or very very basic physics. When I got a chance to talk to him one on one he pretty much blew up, and in return I bluntly told him that he doesnt understand basic physics if he still thinks his answer is correct. He goes off and I just tell him Im leaving and Ill have a word with my dean.

**Anyways, heres the problem:
Air is blown into a balloon. The balloon is then tied so that no air can enter or leave it. If the balloon is squeezed, the air pressure inside increases. Let P be the air pressure (in pounds per square feet) inside the balloon when the baloon's volume is V in cubic inches. Sketch a graph that shows the relationship between the variables defined. Justify your graph.

I encourage bbv4lyf to mspaint answers (serious or not) and after a few are posted Ill post my two answers and then the teachers.

[divides_by_zero]

PV = nRT
P = nRT/V

nRT are constant so P is inversely related to V. Linearly related.

So as V gets bigger, P gets smaller and vice versa. They gave away the answer in the first sentence. Except for the linear part. WTF?

[THEOSU]

it's clearly an inverse relationship. no graph needed.

[Georgia Avenue]

Take all the air out of the balloon, then the answer is zero.

Quod Erat Demonsaneandum

[Labarde]

didn't read OP but this could be a possible solution

[Max Raker]

[ QUOTE ]
PV = nRT
P = nRT/V

nRT are constant so P is inversely related to V. Linearly related.

So as V gets bigger, P gets smaller and vice versa. They gave away the answer in the first sentence. Except for the linear part. WTF?

[/ QUOTE ]

It doesn't have to be linear, any inverse relationship is fine. Pv=Rt is an approximation and it almost never is accurate.

[Smell The Glove]

stab him in the brain

[kylephilly]

Penis <> Vagina

It's clear as day

[Labarde]

[ QUOTE ]
stab him in the groin

[/ QUOTE ]

[divides_by_zero]

The very question is posed funny - I mean they never even say how you squeeze it. Since it's a balloon if you squeeze it in the middle then the balloon will just stretch at the ends and the volume will remain the same and the pressure remains the same. Obviously they want the volume to change because of the question, but still - it's ghey.