Geometry & MeasuresDeep Dive

Method: Reflecting a Point

Part of Transformations: Reflections · GCSE GCSE Mathematics revision

This deep dive covers Method: Reflecting a Point within Transformations: Reflections for GCSE Mathematics. Revise Transformations: Reflections in Geometry & Measures for GCSE Mathematics with 13 exam-style questions and 5 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 6 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 3 of 6

Practice

13 questions

Recall

5 flashcards

Method: Reflecting a Point

1Find perpendicular distance from point to mirror line

2Go the same distance on the OTHER side

3Plot the reflected point

4For shapes, reflect each vertex and join them up

Keep building this topic

Read this section alongside the surrounding pages in Transformations: Reflections. That gives you the full topic sequence instead of a single isolated revision point.

Common Mirror Lines Worked Example: Reflecting in x = 2 Mirror Maths Exam Tips

Practice Questions for Transformations: Reflections

A point P has coordinates (3, 5). It is reflected in the x-axis. What are the coordinates of its image P'?

A. (−3, 5)
B. (3, −5)
C. (5, 3)
D. (−3, −5)

1 markfoundation

Fully describe the single transformation that maps shape A onto shape B. Shape A has vertices at (1, 1), (3, 1), (3, 4) and shape B has vertices at (−1, 1), (−3, 1), (−3, 4).

3 marksstandard

Quick Recall Flashcards

Reflecting in y = x

Swap x and y coordinates. Example: (3,4) → (4,3)

Reflecting in y = -x

Swap coordinates AND change both signs. (x,y) → (-y,-x). Example: (3,4) → (-4,-3)

13 questions on Transformations: Reflections — practise free

Instant marking, adaptive difficulty, and 5 spaced repetition flashcards. Free until your GCSEs.

Try PrepWise Free

Common Mirror Lines

Worked Example: Reflecting in x = 2