Find the Specified Domain $( f - g ) ( x )$

question 104

Multiple Choice

Find the specified domain.
-Find the domain of $( f - g ) ( x )$ when $f ( x ) = \frac { 2 x } { x - 8 }$ and $g ( x ) = \frac { 4 } { x + 3 }$

• A) \(( - \infty , \infty )\)
• B) \(( - \infty , - 8 ) \cup ( - 8,3 ) \cup ( 3 , \infty )\)
• C) \(( - \infty , - 3 ) \cup ( - 3,8 ) \cup ( 8 , \infty )\)
• D) \(( - \infty , - 4 ) \cup ( - 4 , - 2 ) \cup ( - 2 , \infty )\)

---

Definitions:

Output

Represents the total amount of goods and services produced by an economy over a specific period.

Average Variable Cost

The total variable costs (costs that change with the amount of output produced) divided by the quantity of output produced.

Fixed Cost

Costs that do not vary with the level of output or activity, such as rent or salaries.

Marginal Cost

The increased cost incurred from making one more unit of a product or service.