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?
y = 0.03x + 15
y = 0.03x - 15
y = -0.03x + 15
y = -0.03x - 15

Answer 1

I promise to give you a best answer if its right!! :)

Answer 2

you first start with 15 gallons so at x = 0 you should have 15
then for every mi you loose 0.03 so you need a minus sign before 0.03x

Answer 3

so its y=15x-.03??

Answer 4

no (you dont even have such an option)

Answer 5

what?

Answer 6

@EmmaH No,that's reverse

Answer 7

y = -0.03x + 15

Answer 8

oh that makes more since m is the variable?

Answer 9

b is what you start out with

Answer 10

right?

Answer 11

yes

Answer 12

if you mean : y=mx+b

Answer 13

yup thanks :)