Question

a bike rental costs $2.50 per hour plus a fee for renting a helmet. the total cost of renting a bike for 2 hours (h) is $13. the total cost, y, is a function of the hours, x. what given information tells you the rate of change? a bike rental costs $2.50 per hour. the cost of renting a bike for 2 hours is $13. bike rentals $2.50 per hour (additional fee for helmet rental)

Explanation:

The rate of change in a linear function (like cost vs. time here) represents the slope, which is the cost per unit time. The statement "A bike rental costs $2.50 per hour" gives the cost per hour, so this is the rate of change. The 2 - hour total cost includes the helmet fee and hourly cost, so it doesn't directly give the rate of change.

Answer:

A. A bike rental costs $2.50 per hour.