REVISION NOTES
IGCSE Edexcel Mathematics A
3.2 Function Notation (Higher Tier Only)
3.2.1 Understand the concept that a function is a mapping between elements of two sets (Higher Tier Only)
3.2.2 Use function notations of the form f(x) = … and f : x … (Higher Tier Only)
3.2.3 Understand the terms ‘domain’ and ‘range’ and which values may need to be excluded from a domain (Higher Tier Only)
3.2.4 Understand and find the composite function fg and the inverse function f-1 (Higher Tier Only)