If the Total Variable Cost of 9 Units of Output

question 30

Multiple Choice

If the total variable cost of 9 units of output is $90 and the total variable cost of 10 units of output is $120, then

• A)the average variable cost of 10 units is $10.
• B)the average variable cost of 9 units is $10.
• C)the marginal cost of the tenth unit is $90.
• D)the firm is operating in the range of increasing marginal returns.

---

Definitions:

Focal Point

Point at which light rays cross after passing through a concave lens, such as the lens of the eye.

Concave Lens

A lens that is thinner at the center than at the edges, commonly used to correct nearsightedness.

Far Point

The maximum distance at which the eye can see an object clearly without strain.

Near Point

The closest distance at which an object can be seen distinctly by the eye without blurring.