A certain car rental agency charges $25 per day plus 30 cents per mile a) Express the cost of renting a car from this agency for 1 day as a function of the number of miles driven and draw the graph.

Answer 1

C = cost of renting a car (in dollars)

m = number of miles driven

The rental fee is $25/day, so $25 is a fixed cost for renting the car.

Therefore, C = 25+0.30m. To graph this, simply plug in values of m starting at m=0 to get the corresponding cost values and use the x-axis for miles and the y-axis for cost. For example, at 0 miles driven, the cost is C = 25+0.30*0 = 25, and at 10 miles driven, the cost is C = 25+(0.30)*10 = 28.