The graph shows the total cost C(x) to produce x tons of cement. (Recall that average cost is given by total cost divided by the number produced, or C(x) = C(x)/x.)(a) Find the value of x for which the average cost is smallest.
(b) What can you say about the marginal cost at the point where the average cost is smallest?

Transcribed Image Text:

C(x). 300 200 100 0 2 + 4 + 6 8 + 10 + + 12 X