If fixed cost is $8,000,variable cost is $5,000 at an output of 2 and $9,000 at an output of 3,how much is marginal cost at an output of 3?

A) $3,000
B) $4,000
C) $5,000
D) $8,000
E) There is not enough information to determine marginal cost at an output of 3.

Marginal Cost

Marginal Cost is the increase or decrease in the total cost of production resulting from producing one additional unit of a product.

Variable Cost

Refers to expenses that change in proportion to the production output or activity level of a company.

Fixed Cost

This is a cost that does not change with an increase or decrease in the amount of goods or services produced or sold.