If the Function $f ( x ) = 9 x - 4$

question 225

Multiple Choice

If the function $f ( x ) = 9 x - 4$ is one-to-one, find its inverse.

• A) \(f ^ { - 1 } ( x ) = \frac { x - 4 } { 9 }\)
• B) \(f ^ { - 1 } ( x ) = \frac { 1 } { 9 x - 4 }\)
• C) \(f ^ { - 1 } ( x ) = \frac { x + 4 } { 9 }\)
• D) not one-to-one

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