Question

Please Help. Im just having trouble remembering how to do this.
Calculate the average rate of change of the given function over the given interval
f(x) = x^2 − 3;[8, 10]
Answer is 18

Answer 1

\[\frac{f(10)-f(8)}{10-8}\] is what you are looking for

Answer 2

since the 3's will add up to zero, it is really a matter of computing
\[\frac{10^2-8^2}{2}=\frac{36}{2}=18\]

Answer 3

ok thank you!