Josie needs to rent a car from SureRide Car Rentals. The cost of renting a car is a one-time fee of $80 plus $0.75 per mile. Write and graph an equation to represent the cost which Josie must pay to rent a car from SureRide. 6. Let x represent the number of miles driven and y represent the total cost of the car rental. Therefore, the cost of renting the car is y = x + (Hint: When you graph, change .75 to a fraction for the slope.)