Functions (Edexcel A-Level Mathematics): Quizzes

One-to-one

It is many-to-one

$f^{-1}(x) = \sqrt{x}$

Write as $y = f(x)$ and swap $x$ and $y$

The range of $f(x)$

$f^{-1}(x) = \ln(x)$

$y = x$

On the line $y = x$

$f^{-1}(x) = \frac{x-3}{2}$

$x \geq 9$