Sub-topic 1
2025 · National One-Eighth
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Reflection of the line $5x+3y=15$ in the line $y=x$
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Sub-topic 2
2024 · National Preliminary
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Image of $a(-2,3)$ after reflection in the origin then the line $y=x$
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Sub-topic 3
2023 · National Preliminary
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Original point $p$ after reflection in the $y$-axis then the origin, image $(-3,5)$
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Sub-topic 4
2026 · National Semifinal
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Line of reflection when $(3,5)$ maps to $(-5,3)$
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Sub-topic 5
2026 · National Quarterfinal
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Line of reflection when $(1,2)$ maps to $(2,1)$
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Sub-topic 6
2017 · National Quarterfinal
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Image of $a(2,5)$ after reflection in the line $y=7$
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Sub-topic 7
2026 · National One-Eighth
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Reflection of $(x-2)^2+(y+2)^2=25$ in the line $y=x$, the $x$-axis and the origin
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Sub-topic 8
2026 · National Preliminary
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Image of $(3,-5)$ after a reflection in the line $y=-x$
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Sub-topic 9
2025 · National Preliminary
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Reflection rules for the $x$-axis, $y$-axis and the line $y=3$ (true/false)
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Sub-topic 10
2013 · National Preliminary
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Reflection of $a(x,y)$ in the $x$-axis maps onto $a'(x,-y)$ (true/false)
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Sub-topic 11
2023 · National Preliminary
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Image of $y=x^2$, $y=x+4$ and $y=x^3$ after reflection in the point $a(2,3)$
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Sub-topic 12
2023 · National Preliminary
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Line of reflection $l$ for $a(2,1)$, $b(1,2)$ and other point pairs
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