Answer:
-4
Step-by-step explanation:
The y value at x=-2 is -4 because when you go to -2 on the x-axis the function is below there. You can only go straight up or straight down to determine the y-value that corresponds to x=-2 so we go down because the function is below the x-axis there.
We are going to go down until we get on the graph of the line. Scroll over with eyeballs to see that the y there is -4 (use the y-axis).
So the ordered pair (-2,-4) is on our line and when x=-2, y=-4.
Another example:
y=0 when x=2
Another example:
y=2 when x=4
Another example:
y=-3 when x=-1
