Evaluate dy and Ay for the function below at the indicated values. y = f(x) = 81 1- XIN ; X = 3, dx = Ax = - 0.5Let f(x) = 5x2 + 15x + 2. (A) Find Ay and dy for the function f at x = - 2. (B) Graph the functions Ay and dy from part A. (C) Compute the values of Ay and dy from part A for Ax = 0.3._ 370 For a company that manufactures tennis rackets, the average cost per racket is found to be C = T + 6 + 3x for x 21, where x is the number of rackets produced per hour. Use the differential to approximate the change in average cost per racket if production is (A) increased from 10 per hour to 17 per hour and (B) increased from 30 per hour to 37 per hour