Determine Whether the Given Function Is One-To-One $$f ( x ) = \frac { 2 } { x }$$

question 189

Multiple Choice

Determine whether the given function is one-to-one. If it is one-to-one, find its inverse function.
- $$f ( x ) = \frac { 2 } { x }$$

• A) \(f ^ { - 1 } ( x ) = \frac { x } { 2 }\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { 2 } { \mathrm { x } }\)
• C) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = - 2 \mathrm { x }\)
• D)not a one-to-one function

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