Suppose that a highway is governed by a use fee charged to motorists that is based on congestion,operation and maintenance.The total traffic t is used to determine the cost of 5t2.What is the marginal cost?
A)5
B)5t
C)10
D)10t

Question

Quizplus · Accepted Answer

To find the marginal cost, we need to take the derivative of the cost function with respect to traffic t.

Cost function = 5t^2

Marginal cost = d(Cost)/d(t) = 10t

Therefore, the correct answer is D, 10t.

Suppose That a Highway Is Governed by a Use Fee