Algebra - Notation, vocabulary and manipulation: where appropriate, interpret simple expressions as functions with inputs and outputs; interpret the reverse process as the ‘inverse function’; interpret the succession of two functions as a ‘composite function’ (the use of formal function notation is expected) (Higher tier)(Pearson Edexcel GCSE)

Mastery Mind: Mathematics Revision · Oct 22, 2026 · 5m

Function notation is a compact language for turning inputs into outputs, combining rules and undoing them. Master the order of composite functions and the algebra of inverses to tackle Pearson Edexcel GCSE Higher questions with clear working and fewer avoidable errors. Listen to this audio revision guide for Algebra - Notation, vocabulary and manipulation: where appropriate, interpret simple expressions as functions with inputs and outputs; interpret the reverse process as the ‘inverse function’; interpret the succession of two functions as a ‘composite function’ (the use of formal function…