More Lessons for GCSE Maths

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Videos and solutions to help GCSE Maths students learn how to find the inverse of a function.

In a one-to-one function every element in the domain is paired with a unique element in the range

and every element in the range is paired with a unique element in the domain.

Only one-to-one functions can have inverse functions.

1. Replace f(x) with y

2. Interchange x and y

3. Solve the equation for y

4. Replace y with f

Inverse functions : Introduction

This video introduces inverse functions, what they are, notation and how to find them.

This video outlines the procedure and do two complete examples of finding the inverse of a function.

This video demonstrates how to find an inverse of a function.

This video demonstrates a second example for how to find an inverse function.

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