# Chapter R - Algebra Reference - R.5 Inequalities - R.5 Exercises - Page R-21: 5

The interval notation of the given expression is: $(-\infty,-9)$. Refer to the image below for the graph.

#### Work Step by Step

The inequality includes all numbers that are less than $-9$. Thus, the interval notation of the given expression is: $(-\infty,-9)$. To graph the inequality, plot a hole (hollow dot) at $x=-9$, then shade the region to its left. (refer to the attached image in the answer part above)

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.