Suppose that a firm's long-run total cost curve can be expressed as $T C ( Q ) = 100 Q$. This firm's long-run marginal cost curve can be expressed as:
A) $M C = 100$.
B) $M C = 100 Q$.
C) $M C = 100 Q ^ { 2 }$.
D) $M C = 10$.

Question

Quizplus · Accepted Answer

The long-run marginal cost (MC) is the derivative of the total cost (TC) with respect to quantity (Q). Given $TC(Q) = 100Q$, the derivative with respect to Q is $100$, indicating that the MC is constant at 100.

Suppose That a Firm's Long-Run Total Cost Curve Can Be TC(Q)=100QT C ( Q ) = 100 QTC(Q)=100Q

Suppose That a Firm's Long-Run Total Cost Curve Can Be $T C ( Q ) = 100 Q$