Chapter 5.1, Problem 17P

Without graphing, tell whether the slope of a line that models each situation is positive, negative, zero, or undefined. Then find the slope.

The late fee is $ 2 regardless of the number of days the movie is late.

To determine

To find: The slope model for the given situation “The late fee is $\$2$ regardless of the number of days the movie is late.”

Answer to Problem 17P

0

Explanation of Solution

Given information:

The late fee is $\$2$ regardless of the number of days the movie is late.

In the given situation, the late fee is not changing regardless of the number of days the movie is late. Therefore, the slope would be 0.

To find the exact slope:

  $\frac{\text{Change in the late fee}}{\text{Change in number of days (n)}}=\frac{2-2}{n}=\frac{0}{n}=0$

Conclusion:

Therefore, the slope of the line that models the given situation is 0.