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1.2.21 Definition of a function (A-level only)

In x↦x2x\mapsto x^2x↦x2, what happens to the input xxx?

A

Yes - the codomain may be larger than the range.

B

The horizontal line test.

C

The input is squared.

D

A mapping is a function only when every domain element has exactly one output.

1.2.21 Definition of a function (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.2.21 Definition of a function (A-level only)

Flashcards for OCR A Level Maths 1.2.21 Definition of a function (A-level only), covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 22 cards, matched to the OCR A Level Maths (H240) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.