Question

average rate of change f(x)=2x^2-8x from x=2 to x=6

Answer 1

what is f(6)?

Answer 2

it is 24

Answer 3

now evaluate f(2)

Answer 4

average rate of change just asks you for the [f(b) - f(a)]/b-a

Answer 5

-8

Answer 6

after doing so, calculating

\[\Large \frac{f(6)-f(2)}{6-2}\]

will give the average rate of change of f(x) from x = 2 to x = 6

Answer 7

cool, I got it. thanks!

Answer 8

you're welcome