AQA GCSE Mathematics · 8300
Specification A7 · Paper 1, Paper 2, Paper 3
Revise: FunctionsAn inverse function takes an output back to the input that produced it.
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GCSE Mathematics · key term
A function that reverses another function, taking an output back to its original input.
Used by AQA, Edexcel and OCR
Specification A7 · Paper 1, Paper 2, Paper 3
Revise: FunctionsAn inverse function takes an output back to the input that produced it.
Specification A7 · Paper 1, Paper 2, Paper 3
A function that reverses the mapping of another function, turning its outputs back into the original inputs.
Revise: Inverse FunctionsAn inverse function reverses this complete process.
Specification 6.05a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A reverse rule that takes an output back to its original input.
means the inverse function, not .
Do not interpret as . The superscript identifies the inverse function.
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