Question

Question #732f4

Answer 1

`(Delta y)/(Delta x)=-1`

Explanation:

Plug in `x=-8`

`f(-8)=64-72+18=10`

Plug in `x=-2`

`f(-2)=4-18+18=4`

Now plug it into the average rate of change formula. The average rate of change formula is `(Delta y)/(Delta x)=`(change in y) / (change in x):

`(Delta y)/(Delta x)=(10-4)/(-8-(-2))`

`(Delta y)/(Delta x)=-1`