A-Level Maths OCR B (MEI) (H640)

Understand and be able to use inverse functions and their graphs.
Know the conditions necessary for the inverse of a function to exist and how to find it.

Includes using reflection in the line $y = x$ and finding domain and range of an inverse function.

e.g. $\ln{x}~(x > 0)$ is the inverse of $e^x$.

Notation:

• $f^{-1}(x)$