The Function F Is One-To-One $$f ( x ) = \frac { 2 } { x - 4 }$$

question 370

Multiple Choice

The function f is one-to-one. Find its inverse.
- $$f ( x ) = \frac { 2 } { x - 4 }$$

• A) \(f ^ { - 1 } ( x ) = \frac { - 4 + 2 x ^ { 2 } } { x }\)
• B) \(f ^ { - 1 } ( x ) = \frac { - 4 + 2 x } { x }\)
• C) \(f ^ { - 1 } ( x ) = \frac { x } { - 4 + 2 x }\)
• D) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { 4 \mathrm { x } + 2 } { \mathrm { x } }\)

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