This key facts covers What to State for Each Transformation within Transformations for GCSE Mathematics. Revise Transformations in Geometry & Measures for GCSE Mathematics with 16 exam-style questions and 5 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 6 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
What to State for Each Transformation
| Transformation | What to State | What Changes |
|---|---|---|
| Translation | The vector (x, y) | Position only |
| Reflection | The mirror line (e.g., y = x, x = 2) | Position, orientation flips |
| Rotation | Centre, angle, direction (CW/ACW) | Position, orientation |
| Enlargement | Centre, scale factor | Position, SIZE (only one!) |
Practice questions for Transformations
A translation is described by the vector (3, −2). What does this mean?
Shape A is mapped to shape B by a translation. Describe fully what information is needed to describe a translation.
Quick recall flashcards
Reflection
State the MIRROR LINE (equation). Shape flips over. Points and images are equidistant from mirror line.
Rotation
State CENTRE, ANGLE, and DIRECTION (CW/ACW). Shape turns around fixed point. 180° is same CW or ACW.