Verified Answer :

Panoyin

\(f(x) = x^{2} - 16\)
\(y + 16 = x^{2} - 16 + 16\)
\(y + 16 = x^{2}\)
\(\sqrt{y + 16} = \sqrt{x^{2}}\)
\(\±\sqrt{y + 16} = x\)
\(\±\sqrt{x + 16} = y\)
\(\±\sqrt{x + 16} = f^{-1}(x)\)

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