Chapter 5.6, Problem 4ES

In each part, sketch the analogue of Figure $\mathrm{5.6.10}$ for the function and interval specified. [If $x^{\ast }$ is unique, label both it and $f\left(x^{\ast }\right)$ on your sketch. Otherwise, label $f\left(x^{\ast }\right)$ on your sketch, and determine all values of $x^{\ast }$ that satisfy Equation $\left(8\right)$ .]

(a) The function and interval in part (a) of Exercise $2$ .

(b) The function and interval in part (b) of Exercise $2$ .

(c) The function and interval in part (c) of Exercise $2$ .