Suppose a firm’s input of capital is fixed at K = 5 . The cost of capital is r = 2. Derive the formulas for and plot the AFC, MC, AVC, and SAC curves if the short run total cost function is:
a) TC(Q) = 10 + 10Q
b) TC(Q) = 10 + Q2
c) TC(Q) = 10 + 10Q - 4Q2 + Q3