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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