please explain how to do the math

d. For the following increases A2: of the x-coordinate of a point in L, say how much the y-coordinate increases. i. A3: = 10 ii. Ax = 15 iii. Ax = 2.5 iv. Ax = 7.5 v. A56 = 1 vi. Ax = 5 vii. A2: = 12.5 e. The scatter diagram of the data set S is football-shaped. Use item ((1) and regression to estimate the value of the y-coordinates 0f the data points in the data set 8 whose x-coordinates are: i. x = 20 ii. a: = 25 iii. cc = 12.5 iv. a: = 17.5 V a: = 11 V1 :c = 5