Question

=

Given the function h(x) = –22 – 8x + 18, determine the
average rate of change of the function over the interval
-5 < x < -1.

Answer 1

-2

Explanation:

h(x)=-x2-8x=18

for interval -5-x-1=

f (-1)-f(-5)

-1-(-5)=

[-(-1)2-8x(-1)=18]-(-5)2-8x(-5)+18]-1-(-5)=

-1+8+18+25-40-18

-1+5=

8/4=

-2