The table below shows the the total cost of admittance for a basketball game, y, for x students

How do you solve a question like this?

What would the rule be for the reflection of y=-3

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat