## Intermediate Algebra for College Students (7th Edition)

$\left\{x|-3 \le x \le 1\right\}$ Refer to the attached image for the graph.
A bracket on the left means that $-3$ is included in the set. A bracket on the right means that $1$ is included in the set. Therefore, the set-builder form of the given interval is: $\left\{x|-3 \le x \le 1\right\}$ To graph the interval, plot a solid dot at $x=−3$ and a solid dot at $x=1$, andthen shade the region between them. (refer to the attached image in the answer part for the graph)