Question

Find the average rate of change of the function f over the given interval. f(x)=x^2-6/4x-8 from x=6 to x=8

Answer 1

\[\frac{f(8)-f(6)}{8-6}\]
\[\frac{f(8)-f(6)}{2}\] they should be easy enough to find i hope

Answer 2

Okay, so would you plug those numbers in and find the answer that way? I am so lost and confused. Fail.

Answer 3

you need two number now,
\[f(8)\] and
\[f(6)\] is it clear how to find them?

Answer 4

Not really, can you explain step by step?

Answer 5

\[f(x)=\frac{x^2-6}{4x-8}\]
\[f(8)=\frac{8^2-6}{4\times 8-8}\]

Answer 6

so that would be 29/12 right?