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Solving Linear Systems by Graphing by Kara Colley

Solving Linear Systems by Graphing by Kara Colley
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2019-09-11 00:47
FunctionCoordinate GeometryGraphing
This example demonstrates how to solve systems of linear equations by graphing. It involves core mathematical concepts such as linear equations, linear functions, and coordinate geometry. Key GeoGebra commands and objects used in the construction include Random, Line, Sequence, Union, RandomElement, Slope, FractionText, and Textfield. Suitable for middle school and above students to learn and understand the solution methods for linear systems.

GeoGebra Commands & Parameters

  1. Random(-10, 10) → a
  2. Random(-10, 10) → b
  3. Random(-10, 10) → c
  4. Line(A, B) → f
  5. Sequence(i, i, -10, y(B) - 1, 1) → dlower
  6. Sequence(i, i, y(B) + 1, 10, 1) → dupper
  7. Union(dlower, dupper) → dlist
  8. RandomElement(dlist) → d
  9. Line(A, C) → g
  10. Slope(f) → e
  11. Slope(g) → h
  12. FractionText(e) → text1
  13. FractionText(h) → text2
  14. Line(D, E) → i
  15. Line(G, F) → j
  16. Textfield(k) → InputBox1
  17. Textfield(l) → InputBox2