Answer
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)
