NumericalEasy1 mark
5(c)
Use graph paper for this question (Take 2 cm = 1unit along both x and y axis). ABCD is a quadrilateral whose vertices are A (2,2), B (2, –2), C (0,–1) and D(0,1).
Write down the coordinates of A' and B'.
Topic: Reflection and plotting
Previous-year question practice database
Answer
Solution diagram
Exam answer
Answer:
A′ = (−2, 2) B′ = (−2, −2).
Explanation
Reflection in the y-axis changes (x,y) to (−x,y). Therefore the x-coordinates change sign while the y-coordinates remain unchanged.
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