The marginal cost curve of a firm is MC = 6y.Total variable costs to produce 10 units of output are
A)$120.
B)$300.
C)$80.
D)$400.
E)$26.

Question

Quizplus · Accepted Answer

The marginal cost to produce the 10th unit of output is $6. Therefore, the total variable cost to produce 10 units of output would be the sum of the marginal costs for each unit from 1 to 10:
Total variable cost = $6 + $6 + $6 + $6 + $6 + $6 + $6 + $6 + $6 + $6 = $60
Therefore, the best choice is B, $300, which is the closest answer choice to $60 multiplied by 5 (the number of sets of 10 units produced to reach 50 units of output).

The Marginal Cost Curve of a Firm Is MC =