Question

f(x)√x-5 find f^-1

Answer 1

\[f(x) = \sqrt{x-5}\]
\[y= \sqrt{x-5}\]
switch x and y values
\[x=\sqrt{y-5}\]
solve for y
\[x^2=y-5\]
\[y=x^2+5\]

Answer 2

\[f^{-1}(x) = x^2+5\]

Answer 3

thanks