Mathematics A-Level
composite functions
What composite functions means in Mathematics A-Level, as defined for WJEC.
Definition of composite functions
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Reference: WJEC
A composite function fg(x) = f(g(x)) applies function g first and then function f to the output of g.
Topics that use composite functions
- Algebra and Functions (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- algebraic division
- cancelling factors
- domain restrictions
- equating coefficients
- extraneous solutions
- function modelling
- horizontal and vertical scaling
- improper fractions
Using composite functions in the exam
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