Answer:
Explanation:
Average rate of change of a function between interval x = a and x = b is given by,
Average rate of change =

Average rate of change of the function in the interval [-4, -2]
=

=

= 6
Average rate of change in the interval [-2, 1]
=

=

= 1
Average rate of change in the interval [-3, 1]
=

=

= 2
Average rate of change in the interval [-4, 0]
=

=

= 4