Answer
Interval Notation: (-infinity, -7]
Number Line: Closed circle on -7, all values to the left of negative -7 on the number line are shaded
Work Step by Step
Because x <= -7,
-7 is not included in the number line.
Therefore, the solution will include all values that are to the left of -7 on the number line, including -0.2.
The interval notation uses closed brackets on -7 and open on -infinity because -7 is included while -infinity is not
