Functions and iteration

3 quick checks≈2% of the testStretch

Reading is free. Sign in to tick off lessons, keep your place and track your mastery.

By the end you’ll be able to

Use function notation $f(x)$: evaluate $f(a)$ and solve $f(x) = k$ (Higher)
Find and interpret composite functions $fg(x)$ and inverse functions $f^{-1}(x)$ (Higher)
State the domain and range of simple functions and values that must be excluded from a domain (International GCSE and Cambridge Extended content)

0% read

Rearrange an equation into an iterative formula $x_{n+1} = g(x_n)$ and use iteration to find a root to a given accuracy (England GCSE boards, Higher)

This lesson hasn’t been written yet

GCSE Maths lessons are written from the official syllabus the first time a learner opens them, then saved for everyone. Sign in and this one is written for you in a minute or two. It’s free.

Sign in Create a free account