Answer
See the table below.
Work Step by Step
$ \left[\begin{array}{llllll}
& & & f(x)=1/x & & \frac{f(a+h)-f(h)}{h}\\
& & & & & Avg.rate.\\
\mathrm{a} & h & a+h & f(a+h) & f(a) & of.change\\
& & & & & \\
2 & 1 & 3 & 0.333333333 & 0.5 & -0.166666667\\
2 & 0.1 & 2.1 & 0.476190476 & 0.5 & -0.238095238\\
2 & 0.01 & 2.01 & 0.497512438 & 0.5 & -0.248756219\\
2 & 0.001 & 2.001 & 0.499750125 & 0.5 & -0.249875062\\
2 & 0.0001 & 2.0001 & 0.499975001 & 0.5 & -0.249987501
\end{array}\right]$
