The Function F Is One-To-One $$f ( x ) = \frac { - 7 x - 9 } { - 2 x + 6 }$$

question 86

Multiple Choice

The function f is one-to-one. Find its inverse.
- $$f ( x ) = \frac { - 7 x - 9 } { - 2 x + 6 }$$

• A) \(f ^ { - 1 } ( x ) = \frac { - 6 x - 9 } { - 2 x + 7 }\)
• B) \(f ^ { - 1 } ( x ) = \frac { - 7 x - 9 } { - 2 x + 6 }\)
• C) \(f ^ { - 1 } ( x ) = \frac { - 7 x - 7 } { - 2 x + 6 }\)
• D) \(f ^ { - 1 } ( x ) = \frac { - 2 x + 7 } { - 6 x - 9 }\)

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