#### Answer

$\text{Set Builder Notation: }
\{x|x\le2\}
\\\text{Interval Notation: }
(-\infty,2]$

#### Work Step by Step

The given graph shows all the numbers that are less than or equal to $2.$ Hence, the given graph of inequality can be described in the following formats:
\begin{array}{l}\require{cancel}
\text{Set Builder Notation: }
\{x|x\le2\}
\\\text{Interval Notation: }
(-\infty,2]
.\end{array}