Evaluate f(-2)=9^-2 - MathMaster

$f (- 2) = 9^{- 2}$

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$f (- 2) = \frac{1}{9^{2}}$

Raise $9$ to the power of $2$ .

$f (- 2) = \frac{1}{81}$

Evaluate f(-2)=9^-2

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