For the Pair of Functions, Determine the Domain of F $$f ( x ) = \frac { 5 x } { x - 7 } , g ( x ) = \frac { 3 } { x + 1 }$$

question 72

Multiple Choice

For the pair of functions, determine the domain of f + g.
- $$f ( x ) = \frac { 5 x } { x - 7 } , g ( x ) = \frac { 3 } { x + 1 }$$

• A) \(( \infty , \infty )\)
• B) \(( \infty , - 1 )\) or \(( - 1,7 )\) or \(( 7 , \infty )\)
• C) \(( \infty , - 1 )\) or \(( 7 , \infty )\)
• D) \(( \infty , - 7 )\) or \(( - 7,1 )\) or \(( 1 , \infty )\)

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