Question

Keisha rents a scooter to get to the beach. The rental company charges $2 per mile plus a fee of $20.
Donovan rents a bike to get to the beach. The equation below shows the cost in dollars, y, as a function of the miles Donovan travels, z.
Compare the rates of change of the two functions.
Donovan: y = x + 28
Keisha's rental costs $ ?
per mile. Donovan's
rental costs $ ?
per mile. The rate of change
of Keisha's function is ?
the rate of change of Donovan's function.
X

Answer 1

Keisha's rental costs $2 per mile.
Donovan's rental costs $1 per mile.
The rate of change of Keisha's function is greater than Donovan's (it is twice as large).