Multiply and Simplify $\frac { 4 - r } { 5 } \cdot \frac { 5 } { r - 4 }$

question 94

Multiple Choice

Multiply and simplify. $\frac { 4 - r } { 5 } \cdot \frac { 5 } { r - 4 }$

• A) \(- 1 , r \neq 4\)
• B) \(- \frac { 4 } { 5 } , r \neq 5\)
• C) \(1 , r \neq 4\)
• D) \(\frac { 5 } { 4 } , r \neq - 5\)
• E) \(\frac { 1 } { 5 } , r \neq 0\)

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Definitions:

Marginal Cost

The price of making one more unit of a product or service.

Average Product

The output per unit of input, such as labor or machinery, typically used in the context of analyzing production efficiency.

Marginal Cost

The increase in total cost that results from producing one additional unit of a good or service.

Total Cost

The total economic cost of production, including both fixed and variable costs.