You drive a car that holds 15 gallons of gasoline. Your car uses 0.03 gal per mi. Which equation best represents this information?
A. y = 0.03x + 15
B. y = 0.03x - 15
C. y = -0.03x + 15
D. y = -0.03x - 15

Question

You drive a car that holds 15 gallons of gasoline. Your car uses 0.03 gal per mi. Which equation best represents this information?
	A.	y = 0.03x + 15
	B.	y = 0.03x - 15
	C.	y = -0.03x + 15
	D.	y = -0.03x - 15

anonymous · Answer

i think A

anonymous · Answer

If your car holds 15 gallons and it loses 0.03 gallons per minute. What is it doing? Adding or Subtracting?

anonymous · Answer

subtracting so what b?

anonymous · Answer

Good, it's subtracting, so that eliminates A and C

anonymous · Answer

Are we dealing with negative numbers or positive numbers?

anonymous · Answer

positive but we are subtracting

anonymous · Answer

so b?

anonymous · Answer

No, it's not B. Because if you take you positive number multiply it and subtract it by 15 it going to be negative. Therefore your answer is C.

anonymous · Answer

ok thank you

anonymous · Answer

No problem! :)