Homework: 2.6 HW Question 11, 2.6.47-BE HW Score: 75.76%, 8.33 of 11 points Part 1 of 2 O Points: 0 of 1 For a company that manufactures tennis rackets, the average cost per racket is found to be C = -+ 9+ , x for x2 1, where x is the number of rackets produced per hour. 390 1 Use the differential to approximate the change in average cost per racket if production is (A) increased from 20 per hour to 27 per hour and (B) increased from 35 per hour to 42 per hour. (A) If production is increased from 20 per hour to 27 per hour the average cost per racket will by approximately $ per racket