Find the Domain of the Composite Function F $f ^ { \circ } g$

question 230

Multiple Choice

Find the domain of the composite function f $f ^ { \circ } g$
- $$\mathrm { f } ( \mathrm { x } ) = 7 \mathrm { x } + 14 ; \quad \mathrm { g } ( \mathrm { x } ) = \mathrm { x } + 7$$

• A) \(\{ x \mid x\) is any real number \(\}\)
• B) \(\{ x \mid x \neq 9 \}\)
• C) \(\{ x \mid x \neq - 7 , x \neq - 2 \}\)
• D) \(\{ x \mid x \neq - 9 \}\)

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