Graph the function LaTeX:  \displaystyle f(x)=\begin{cases} - \frac{4 x}{5} - 5,& x \leq -2\\ 5 - \frac{x^{2}}{5},& -2 < x < 2\\ x - 7,& x \geq 2 \\ \end{cases}

The graph has three parts. It is a line on LaTeX:  \displaystyle (-\infty, -2] , a parabola on LaTeX:  \displaystyle (-2,2) , and a line on LaTeX:  \displaystyle [2, \infty) . Graphing each part gives: