Question

Complete the description of the piecewise function graphed below.

Answer 1

-1 if
`-4\leq x\leq -1`

4 if
`-1 < x\leq 3`

-2 if
`3 < x\leq 6`

The question is asking for what intervals is x equal to when y is equal to a value. This is answered by finding out the intervals of the horizontal lines the intervals cover. However, because some points are holes, the interval will show that x is not equal to that number, only greater than/less than.