Inverse Functions (Leaving Cert Mathematics): Quizzes

$\frac{x-3}{2}$

When it's 1-1

$y=x$ line

$f(x)=x^2$

Swaps $x$, $y$

Swap $x$ and $y$

One-to-one

$f^{-1}$

$\frac{x+2}{3}$

Yes, always