Perform the Requested Operation or Operations $$f ( x ) = 5 x + 4 ; g ( x ) = 4 x - 5$$

question 117

Multiple Choice

Perform the requested operation or operations. Find the domain of each.
- $$f ( x ) = 5 x + 4 ; g ( x ) = 4 x - 5$$
Find f/g.

• A) \(( f / g ) ( x ) = \frac { 5 x + 4 } { 4 x - 5 } ;\) domain \(\left\{ x \mid x \neq - \frac { 4 } { 5 } \right\}\)
• B) \(( \mathrm { f } / \mathrm { g } ) ( \mathrm { x } ) = \frac { 5 \mathrm { x } + 4 } { 4 \mathrm { x } - 5 }\); domain \(\left\{ x \mid x \neq \frac { 5 } { 4 } \right\}\)
• C) \(( f / g ) ( x ) = \frac { 4 x - 5 } { 5 x + 4 } ;\) domain \(\left\{ x \mid x \neq \frac { 5 } { 4 } \right\}\)
• D) \(( f / g ) ( x ) = \frac { 4 x - 5 } { 5 x + 4 } ;\) domain \(\left\{ x \mid x z - \frac { 4 } { 5 } \right\}\)

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