GeoH Unit 3
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Translation, reflection, and rotation rules
Last updated 8:20 PM on 10/6/26
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10 Terms
1
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Translation rule
(x,y) —> (x+a,y+b)
2
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Reflection across the x-axis
(x,y) —> (x,-y)
3
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Reflection across the y-axis
(x,y) —> (-x,y)
4
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Reflection across line y=x
(x,y) —> (y,x)
5
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Reflection across line y=-x
(x,y) —> (-y,-x)
6
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Rotated 90°
(x,y) —> (-y,x)
7
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Rotated 180°
(x,y) —> (-x,-y)
8
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Rotated 270°
(x,y) —> (y,-x)
9
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Reflected across line y=a
(x,y) —> (x,2a-y)
10
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Reflected across line x=a
(x,y) —> (2a-x,y)