Answer
$\left\{x| x \ge -3\right\}$
Refer to the image below for the graph.
Work Step by Step
A bracket on the left means that $-3$ is included in the set.
Therefore, the set-builder form of the given interval is:
$\left\{x| x \ge -3\right\}$
To graph the interval, plot a solid dot at $x=-3$, and then shade the region to the right of $-3$.
(refer to the attached image in the answer part for the graph).
