What is the average rate of change for this function for the interval From x=3 to x=5

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?