Answer
net change=$5$
average rate of change =$\frac{5}{4}$
Work Step by Step
We are asked to find the net change and average rate of change between $x=2$ and $x=6$. Using the graph, we see that $f(2)=2$ and $f(6)=7$. Thus we have:
net change=$f(6)-f(2)=7-2=5$
average rate of change =$\frac{f(6)-f(2)}{6-2}=\frac{5}{4}$