Chapter 5.CR, Problem 21CR

Reminder Round all answers to two decimal places unless otherwise indicated.

Travel Time The time $T$, in hours, required to drive $100\text{miles}$ is a function of the average speed $s$, in miles per hour. The formula is

$T=\frac{100}{s}$.

a. Make a graph $T$ versus $s$ covering speeds up to $70\text{miles per hour}$.

b. Calculate $T\left(25\right)$ and explain in practical terms what your answer means.

c. Explain in practical terms the behavior of the graph near the pole at $s=0$.