What Inputs Are Defined for the Expression $$\frac { 8 } { x - 7 }$$

question 58

Multiple Choice

What inputs are defined for the expression? $$\frac { 8 } { x - 7 }$$

• A) \(R, x \neq - 7\)
• B) \(R , x \neq 7\)
• C) \(R , x \neq - 8\)
• D) \(R , x \neq 0\)
• E) \( R , x \neq 8\)

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Definitions:

Fixed

In economics, pertains to costs that do not change with the level of output or production, such as rent, salaries, and insurance.

Variable

A quantity that can take on more than one value.

Short-Run Average Total Cost Curve

A graphical representation that shows the average total cost of producing different levels of output in the short run, when at least one input is fixed.

Fixed Cost

Costs that do not vary with the level of output or production, such as rent, salaries, and insurance premiums.