Mathematics A-Level
functions and mappings
What functions and mappings means in Mathematics A-Level, as defined for WJEC.
Definition of functions and mappings
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Reference: WJEC
A mapping that assigns to each element x in the domain exactly one element y in the codomain, written y = f(x).
Topics that use functions and mappings
Related terms
- Domain
- domain and range
- Function
- Identity
- Intersection
- inverse functions
- Logarithm
- mathematical idealisations
Using functions and mappings in the exam
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