Chapter 4.6, Problem 59E

To determine

To solve: the inequality.

Answer to Problem 59E

Hence, the inequality solution is:

  

The vertical line is dotted since $b=19$ is not included in the graph.

Explanation of Solution

Given: Graph the solution.

  $15<b-4$

Calculation:

Consider the inequality $15<b-4$

Now, solve the inequality

Add by $4$ on both sides

  $\begin{array}{l}15+4<b-4+4\\ 19<b\end{array}$

Take the variable on one side

  $b>19$

Now, draw the graph for the $b>19$

  

The vertical line is dotted since $b=19$ is not included in the graph.

Conclusion:

Hence result of the graph is:

  

The vertical line is dotted since $b=19$ is not included in the graph.