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Number Line

Number Line
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2019-03-18 10:16
FunctionCoordinate GeometryProbability & Statistics
This example demonstrates the concept of a number line, illustrating key mathematical concepts such as natural numbers, random variables, and quadratic functions. Using GeoGebra commands like Intersect, Point, and CircleArc, the number line is constructed and its properties are observed. Suitable for students at the junior high school level and above.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → O
  2. Point(yAxis) → C
  3. Point(xAxis) → B
  4. CircleArc(O, B, C) → c
  5. Point(c) → A
  6. Sequence(Translate[O, Vector[((0.1 * i) * UnitVector[Vector[O, A]])]], i, -200, 200) → l3
  7. Line(O, A) → f
  8. Sequence(Translate[O, Vector[(i * UnitVector[Vector[O, A]])]], i, -10, 10) → l1
  9. PathParameter(A) → t
  10. Point(l3) → P
  11. PathParameter(P) → a
  12. Sequence(Text[i, Translate[O, (-0.2, -0.7) + (t * (0.5, 0.6)) + If[i ≥ 0, (0.1, 0), (0, 0)] + (i * UnitVector[Vector[O, A]])]], i, -10, 10) → l2