MathsYears 12–13Algebra and Functions

Graph transformations

Apply translations, stretches and reflections to graphs of functions; understand composite transformations

What you'll learn

  1. 1

    Imagine a green squiggle drawn on a rubber sheet. When you stretch or squash the sheet, the squiggle changes shape — that's a transformation!

  2. 2

    What does a graph transformation do to the original graph?

  3. 3

    Let's transform y = x² by adding 3 outside: y = x² + 3

  4. 4

    Drag the graph y = x² up by 2 units to see the new curve y = x² + 2.

  5. 5

    If you have y = x² and you change it to y = x² + 5, what happens?

  6. 6

    Now try a horizontal shift: y = (x - 2)²

  7. 7

    What shift does y = (x + 4)² give?

Practise Graph transformations with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 16–18. Aligned to the UK National Curriculum.