Chapter 6.2, Problem 3E

Reminder Round all answers to decimal places unless otherwise indicated.

Estimating Rates of Change: Use your calculator to make the graph of $f\left(x\right)=x^3-5x$.

a, Is $\frac{df}{dx}$ positive or negative at $x=2$?

b. Identify the point on the graph of $f$ where $\frac{df}{dx}$ is negative.