The Function F Is One-To-One $$f ( x ) = x ^ { 2 } + 1 , x \geq 0$$

question 457

Multiple Choice

The function f is one-to-one. Find its inverse.
- $$f ( x ) = x ^ { 2 } + 1 , x \geq 0$$

• A) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \sqrt { \mathrm { x } } - 1 , \mathrm { x } \geq 0\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \sqrt { \mathrm { x } - 1 } , \mathrm { x } \geq 1\)
• C) \(f ^ { - 1 } ( x ) = \sqrt { x + 1 } , x \geq - 1\)
• D) \(f ^ { - 1 } ( x ) = \sqrt { x } - 1 , x < 0\)

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