Question

The function y = 15x represents the distance in feet, y, a ball flies in x seconds What does the average rate of change over the interval (2, 5) mean? a.The total distance the ball flies in feed between 2 and 5 seconds. b. The average speed of the ball in feet per second between 2 and 5 seconds. c. The average speed of the ball in seconds per foot between 2 and 5 seconds d. The total time the ball flies in seconds between 2 and 5 seconds.

Answer 1

The average rate of change over an interval, is a measure of how much the function changed per unit, on average, over that interval.

Since the function y = 15x represents the distance in feet, y, a ball flies in x seconds, the average of change for this function mean The average speed of the ball in feet per second between 2 and 5 seconds.

Answer:

b. The average speed of the ball in feet per second between 2 and 5 seconds.