If the Function Is One-To-One, Find Its Inverse $$f ( x ) = \sqrt { x + 8 } , x \geq - 8$$

question 155

Multiple Choice

If the function is one-to-one, find its inverse. If not, write "not one-to-one."
- $$f ( x ) = \sqrt { x + 8 } , x \geq - 8$$

• A) \(f ^ { - 1 } ( x ) = \sqrt { x - 8 }\)
• B) \(f ^ { - 1 } ( x ) = x ^ { 2 } - 8 , x \geq 0\)
• C) not a one-to-one
• D) \(f ^ { - 1 } ( x ) = ( x + 8 ) ^ { 2 }\)

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