Chapter 6.2, Problem 12SBE

To determine

(a)

To comment on:

The graph of $\frac{df}{dx}$ when the graph of $f$ is increasing.

To determine

(b)

To comment on:

The graph of $\frac{df}{dx}$ when the graph of $f$ is at a peak.

To determine

(c)

To comment on:

The graph of $\frac{df}{dx}$ when the graph of $f$ is decreasing.

To determine

(d)

To comment on:

The graph of $\frac{df}{dx}$ when the graph of $f$ is a straight line.