Mathematics A-Level
Stretches and translations
What Stretches and translations means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Stretches and translations
Check what you remember
Read the wording for your board, then hide it and explain Stretches and translations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A stretch reshapes the graph, as y = af(x) stretches vertically by scale factor a, while a translation moves it, as y = f(x) + a translates by a units parallel to the y-axis.
Topics that use Stretches and translations
- 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 Stretches and translations in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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