(a)[1]
Using this diagram, sketch $y = f^{-1}(x)$.
(b)[4]
Now suppose that $f(x) = -\frac{x}{\sqrt{4 - x^2}}$ for $-2 \le x \,\le 2$. Determine an expression for $f^{-1}(x)$.
Mathematics 9709 · AS & A Level · Functions
Functions — practice question
The diagram displays the graph of $y = f(x)$.