If the Function Is One-To-One, Find Its Inverse $$f ( x ) = - \sqrt { x ^ { 2 } - 25 } , x \geq 5$$

question 172

Multiple Choice

If the function is one-to-one, find its inverse. If not, write "not one-to-one."
- $$f ( x ) = - \sqrt { x ^ { 2 } - 25 } , x \geq 5$$

• A) \(f ^ { - 1 } ( x ) = - \sqrt { 25 - x ^ { 2 } } , x \leq 0\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \sqrt { 25 - \mathrm { x } ^ { 2 } } , \mathrm { x } \leq 5\)
• C) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \sqrt { \mathrm { x } ^ { 2 } + 25 } , \mathrm { x } \geq 0\)
• D) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \sqrt { \mathrm { x } ^ { 2 } + 25 } , \mathrm { x } \leq 0\)

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