Question

Math help please..............

Answer 1

- 2

Explanation:

The average rate of change in the closed interval [ a, b ] is

`(f(b)-f(a))/(b-a)`

here [ a, b ] = [ - 1, 1 ]

f(b) = f(1) = 1 - 2 = - 1

f(a) = f(- 1) = 1 + 2 = 3

Hence

average rate of change =
`(-1-3)/(1-(-1))` =
`(-4)/(2)` = - 2

Answer 2

The answer is 2. The rate of change between -1 and 0 is 3 and between 0 and -1 is 1. The average between 3 and 1 is 2.