Question

Ted is renting a van for a road trip from Abby's Autos. There is an initial fee for the rental and an additional charge that depends on how many miles he drives it.
There is a linear relationship between the distance Ted drives, in miles, and the total cost.
Distance (miles) Total cost
0 $50.00
20 $60.00
40 $70.00
60 $80.00
Describe the rate of change for this relationship.
The total cost of the rental
by
per mile.

Answer 1

The total cost of the rental increases by $0.50 per mile.

Reason: slope = (60−50)/(20−0) = 10/20 = 0.5, so cost rises $0.50 for each additional mile.