TeX source:

\begin{array}{c|c|c|c|c|c|c}\mathrm{x} & \mathrm{f}(\mathrm{x}) & \mathrm{g}(\mathrm{x}) & \mathrm{f}^{\prime}(\mathrm{x}) & \mathrm{g}^{\prime}(\mathrm{x}) & (\mathrm{f} \circ \mathrm{g})(\mathrm{x}) & (\mathrm{f ∘ g})^{\prime}(\mathrm{x}) \\\hline-2 & 2 & -1 & 1 & 1 & \mathbf{1} & \mathbf{0} \\-1 & 1 & 2 & 0 & 2 & \mathbf{1} & \mathbf{2} \\0 & -2 & 1 & 2 & -1 & \mathbf{0} & \mathbf{1} \\1 & 0 & -2 & -1 & 2 & \mathbf{2} & \mathbf{2} \\2 & 1 & 0 & 1 & -1 & -\mathbf{2} & \mathbf{- 2}\end{array}