Answer
$\displaystyle \frac{3}{2}$
Work Step by Step
See p.725
The average rate of change of $f(x)$ over the interval $[a, b]$ is $\displaystyle \frac{f(b)-f(a)}{b-a}$
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Given the interval $[0,2]$ and the table,
a=$0,\ \quad f(0)=-1$
b=$2,\ \quad f(2)=2$
$\displaystyle \frac{f(b)-f(a)}{b-a} =\displaystyle \frac{2-(-1)}{2-0}=\frac{3}{2}$
(no units)
