Answer
J
Work Step by Step
The correct interval notation for the inequality $x\leq6$ is $(-\infty,6]$. This is denoted by option J.
According to the inequality, the interval includes $6$ and all values less than $6$. Since $6$ is a part of the interval, a square bracket is used on its side. On the other hand, we represent all values less than $6$ by the symbol $-\infty$. Therefore, a parenthesis is used on its side as parentheses are always used wherever $\infty$ is used.
