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Quadratic Inequalities by Gabriel Cheow

Quadratic Inequalities by Gabriel Cheow
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2020-02-17 16:52
FunctionInequalityGraphing
This example demonstrates the solution set of quadratic inequalities in the coordinate system. Core math concepts include inequality solving, function graphs, and interval representation. Construction highlights use of GeoGebra commands like RandomElement, Random, Expand, Factor, Solve, and objects such as A, B, C, list1, Qn. Suitable for high school mathematics teaching to understand and visualize quadratic inequalities.

GeoGebra Commands & Parameters

  1. RandomElement({-1, 1}) → A
  2. RandomElement({1, 2}) → B
  3. Random(-5, 5) → C
  4. RandomElement({1, 2}) → D
  5. Random(-5, 5) → E
  6. Expand(((A * ((B * x) + C)) * ((D * x) + E))) → f
  7. Factor(f) → g
  8. Random(1, 4) → Qn
  9. Solve(list1(Qn, x)) → l1