Short answerEasy1 mark
5(c)
Use a graph sheet for this question. Take 1 cm = 1 unit along both x and y axis.
Reflect the points B, C and D on the y axis and name them as B', C' and D' respectively.
Topic: Reflection and plotting
Previous-year question practice database
Answer
Solution diagram
Exam answer
Reflection in the y-axis maps (x,y) → (−x,y).
B(3,0) → B′(−3,0)
C(1,0) → C′(−1,0)
D(1,−5) → D′(−1,−5).
Answer: B′(−3,0), C′(−1,0), D′(−1,−5).
Explanation
Only the x-coordinate changes sign in reflection about the y-axis.
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