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Understanding Point Coordinates

Understanding Point Coordinates
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2014-02-12 02:07
Coordinate GeometryTransformationGeometric Construction
This example demonstrates the meaning of Abscissa and Ordinate, and the sign changes of x and y coordinates in different quadrants. It uses commands like OrthogonalLine, Intersect, and Segment to help students understand basic concepts of coordinate geometry. Suitable for middle school and above students.

GeoGebra Commands & Parameters

  1. OrthogonalLine(P, xAxis) → c
  2. OrthogonalLine(P, yAxis) → d
  3. Intersect(yAxis, d) → A
  4. Intersect(c, xAxis) → B
  5. Segment(P, B) → PB
  6. Segment(P, A) → PA
  7. Intersect(xAxis, yAxis) → O