Carla put 24 gallons of gas in her car. she uses one glallon for every 25 miles she drives. What is the slope and y-intercept?

Answer 1

I assume that y represents the gallons in her car and that x represents the miles driven. If this assumption is correct, then the y intercept would be the gallons in the car when Carla has driven 0 miles, which would be 24 gallons.

Slope is the change in y over the change in x. In this case, slope is the change in gallons over the change in miles: slope = -1 gallon/25 miles = -.04 gallons/mile.