The Function F Is One-To-One $$f ( x ) = 2 x$$

question 27

Multiple Choice

The function f is one-to-one. Find its inverse.
- $$f ( x ) = 2 x$$

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

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