Question

What is the average rate of change of the function f(x)=2x^2+x+5 over the interval -2

Answer 1

we get that:

`\begin{gathered} f(2)=8+2+5=15 \\ f(-2)=8-2+5=11 \end{gathered}`

so the average change is:

`m=(15-11)/(2--2)=(4)/(4)=1`

so the answer is the option C