Question

Karen dropped a ball from different heights. This table shows the height from wich she dropped the ball and the height of the balls first bounce. What was the average rate of of change in the bounce height as drop height changed from 20 inches to 60 inches. A.0.90 B.0.85 C.0.60 D.0.25

Answer 1

A. 0.90

Explanation:

We are asked to find the average rate of change over the interval [20, 60]

Average rate of change =
`(f(b) - f(a))/(b - a)`

Where,

`a = 20, f(a) = 15`

`b = 60, f(b) = 51`

Plug in the values into the formula:

Average rate of change =
`(51 - 15)/(60 - 20)`

`(36)/(40) = 0.90`

✅Average rate of change in the bounce height as drop height changed from 20 inches to 60 inches is 0.90.