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?

Answer 1

"which" implies some kind of choices...

Answer 2

A. y = 0.03x + 15
B. y = 0.03x - 15
C. y = -0.03x + 15
D. y = -0.03x - 15

Answer 3

It deserves to be closed.

Answer 4

What is y to represent? What is x to represent etc.

Answer 5

Think about this: you start off with 15 gallons, and as time passes, you have LESS by 0.03. Therefore, the y-int would be (0,15) because that is how much you have at time 0 (start), and you have a slope of -0.03 because you lose that much per mile. Now, can you tell me which equation that would be?

Answer 6

In spite of it all, I think B is the best ansnwer provided y represents the amount of gas remaining in tank after x miles.

Answer 7

Is that what you're thinking the cholcluver445?

Answer 8

Wouldn't it be C? You have a neg slope because you lose gas as you drive more.

Answer 9

Think of it like this.