Mathematics A-Level
Identity function
What Identity function means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Identity function
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Reference: Pearson Edexcel
The function that leaves every input unchanged, mapping x to x.
Topics that use Identity function
- Algebra and functions (Pearson Edexcel A-Level)
Related terms
- Algebraic division by linear expressions
- Amplitude
- Asymptote
- Comparing coefficients
- Completing the square
- Composite function
- Conjugate
- Discriminant
Using Identity function in the exam
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