Chapter 1.1, Problem 52E

Net Income: Casual Apparel In the following graph, $n\left(t\right)$ is Pacific Sunwear’s approximate net income, in millions of dollars, for the year ending at time t $\left(t\text{ is time in years since December 2004}\right){:}^{11}$

a. Estimate $n\left(0\right),n\left(4\right)$, and $n\left(5.5\right)$ to the nearest 25. Interpret your answers.

b. At which of the following values of t is $n\left(t\right)$ increasingmost rapidly: 1, 2, 4, 7, 8, or 9? Interpret your answer.

c. At which of the following values of t is $n\left(t\right)$ decreasing most rapidly: 1, 2, 4, 7, 8, or 9? Interpret your answer.