A bicycle tire is pumped to a pressure of 120 psi (pounds per square inch). While riding his bike, Daniel ran over a small nail, and the tire has a small hole in it. Air is leaking and the tire is losing pressure at a rate of 12 psi per minute. If you graphed the pressure of the tire as the output, compared to the number of minutes as the input, which of the following statements about the graph would not be true?
A.The graph would be a line.
B.The graph would rise from left to right.
C.The graph would be only in the first quadrant.
D.The more time has passed, the lower the psi would b

Question

A bicycle tire is pumped to a pressure of 120 psi (pounds per square inch). While riding his bike, Daniel ran over a small nail, and the tire has a small hole in it. Air is leaking and the tire is losing pressure at a rate of 12 psi per minute. If you graphed the pressure of the tire as the output, compared to the number of minutes as the input, which of the following statements about the graph would not be true?
A.The graph would be a line.
B.The graph would rise from left to right.     
C.The graph would be only in the first quadrant.
D.The more time has passed, the lower the psi would b

anonymous · Answer

Are you able to work out if any of these should be true or false? Can you see what the equation should be relating pressure to time?

anonymous · Answer

Well i know C is true. I think its B

anonymous · Answer

@Indivicivet

anonymous · Answer

Correct! Can you justify C being correct? I think A and D are fairly self-sufficient.

anonymous · Answer

Well A its obviously gonna be a line so its true. D because the air is leaking. C I graphed it. I  guess i wasn't thinking all the way.

anonymous · Answer

Aha fair enough =)

anonymous · Answer

Haha thanks :)