Determine the Domain of the Function $f ( x ) = \frac { 2 x } { x - 9 }$

question 95

Multiple Choice

Determine the domain of the function.
- $f ( x ) = \frac { 2 x } { x - 9 }$

• A) \(\{ x \mid x \neq - 9 \}\)
• B) \(\{ x \mid x \neq 0 \}\)
• C) \(\{ x \mid x \text { is a real number } \}\)
• D) \(\{ x \mid x \neq 9 \}\)

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Definitions:

Break-even Point

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