Determine the Domain of the Function $r ( x ) = \frac { x ^ { 2 } + x - 20 } { x ^ { 2 } - 14 x + 48 }$

question 52

Multiple Choice

Determine the domain of the function.
- $r ( x ) = \frac { x ^ { 2 } + x - 20 } { x ^ { 2 } - 14 x + 48 }$

• A) \(\{ x \mid x \neq 5 \text { and } x \neq - 4 \}\)
• B) \(\{ x \mid x \neq 6 \text { and } x \neq 8 \}\)
• C) \(\{ x \mid x \neq - 6 \text { and } x \neq - 8 \}\)
• D) \(\{ x \mid x \neq - 5 \text { and } x \neq 4 \}\)

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Definitions:

Intertemporal Price Discrimination

involves charging different prices at different times for the same product, aiming to maximize profits by taking advantage of differences in demand elasticity over time.

Peak-Load Pricing

A pricing strategy that adjusts prices in response to varying levels of demand, typically higher during peak usage times.

Marginal Revenue

The additional income that is generated by selling one more unit of a good or service.

Peak-Load Pricing

A pricing strategy that applies higher charges for goods or services during times of peak demand to manage usage and maximize profit.