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Reflection over y=2

Reflection over y=2
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2015-03-02 06:43
FunctionCoordinate GeometryTransformation
This example demonstrates reflecting a figure over the line y=2. Key mathematical concepts include reflection transformation. It uses commands like Point, Line, Polygon, and Mirror in GeoGebra. Suitable for middle school and above students learning geometric transformations.

GeoGebra Commands & Parameters

  1. Point(yAxis) → A
  2. Line(A, B) → a
  3. Point(yAxis) → C
  4. Point(yAxis) → D
  5. Polygon(C, D, E, F) → poly1, c, d, e, f
  6. Mirror(C, a) → C'
  7. Mirror(D, a) → D'
  8. Mirror(E, a) → E'
  9. Mirror(F, a) → F'
  10. Polygon(C', D', E', F') → poly1', c', d', e', f'