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

Answer 1

Let y = gallons of gasoline Let x = number of miles y starts at 15 and then you subtract 0.03 gal. for each x.

Answer 2

Your answer should be C :)