Given F (X), Write an Equation For $f ^ { - 1 } ( x )$

question 85

Multiple Choice

Given f (x) , write an equation for $f ^ { - 1 } ( x )$ ) and then graph f (x) and $f ^ { - 1 } ( x )$ ) on the same coordinate system.
- $$f ( x ) = x ^ { 2 } - 9 ; x \leq 0$$

• A) \(f ^ { - 1 } ( x ) = \sqrt { x + 9 }\)
• B) \(f ^ { - 1 } ( x ) = - \sqrt { x + 9 }\)
• C) \(f ^ { - 1 } ( x ) = \sqrt { x + 9 }\)
• D) \(f ^ { - 1 } ( x ) = - \sqrt { x + 9 }\)

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