### Home > PC > Chapter 9 > Lesson 9.1.2 > Problem 9-22

9-22.

Which (if any) of the following would have a fairly constant rate of change? Explain your answer.

The speed of a car as it enters an on-ramp to a freeway until it reaches the freeway speed limit.

The rise in temperature of an oven going from room temperature to

. The number of kilowatt-hours of electricity used by one household from 7:00 AM to 10:00 AM.

(a) This situation would have a fairly constant rate of change.

(b) This situation would have a fairly constant rate of change.

(c) This situation would not have a fairly constant rate of change.