## Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

$(-2,0)$ See the figure below.
Since both the left and right boundaries of the given inequality involve "less than", then the interval notation will have parentheses on both ends. Hence, the given inequality can be written as $(-2,0)$. To graph, plot circles at $x=-2$ and $x=0$, then shade the region between them. See the figure below.