If the fixed costs are 13 and the variable costs are Q + 2 per unit, show that the average cost function is
AC = 13/Q + Q + 2
(a) Calculate the values of AC when Q = 1, 2, 3, . . . , 6. Plot these points on graph paper and hence produce an accurate graph of AC against Q.
(b) Use your graph to estimate the minimum average cost.
(c) Use differentiation to confirm your estimate obtained in part (b).