Determine the Function Value $f ( x ) = \log _ { a } x$

question 113

Multiple Choice

Determine the function value.
-Suppose $f ( x ) = \log _ { a } x$ and $f ( 9 ) = 2$ . Find $f \left( \frac { 1 } { 81 } \right)$ .

• A) \(\frac { 1 } { 2 }\)
• B) \(- 2\)
• C) \(- 4\)
• D) 4

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