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4th Edition

James Stewart

Publisher: Cengage Learning

ISBN: 9781337687805

Chapter 2.7, Problem 10E

To determine

**To sketch:** The graph of *f.*

Expert Solution

From the given graph, it is observed that the graph of *f* contains the horizontal tangents at two points. Let the two points be *A* and *B*.

Note that, the value of the derivative will be zero at the point where the function has the horizontal tangent.

Thus, the graph of *A* and *B*.

From the point *A* to left, the graph has strictly negative slope which implies that the derivative graph

From the point *B* to right, the graph has strictly positive slope which implies that the derivative graph

**Graph:**

Use the above information and trace the graph of

Thus,