Question

Andrew needs to rent a car for a one-week trip through Colorado. He is considering two different rental companies: the Mile High Rental Company which charges $160 per week plus 20¢ per mile and the Rocky Mountain Rental Company which charges $200 per week plus 10¢ per mile. If x = the number of miles driven during the week and y = the total rental cost (in dollars) for the week, which two of the following equations correctly model the rental cost for one week for these two companies?

Answer 1

The two equations would be

y = 160 + 0.20x
y = 200 + 0.10x

Both equations start out with the up-front fee, then add the cost for the mileage (rate times the number of miles).