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Quiz on Increasing-Decreasing Parabola

Quiz on Increasing-Decreasing Parabola
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2019-03-27 15:44
FunctionCoordinate GeometryCalculusGraphing
This example demonstrates the increasing and decreasing intervals of quadratic functions. It involves core math concepts like quadratic functions, derivatives, axis of symmetry, and vertex. Constructed using GeoGebra commands and objects such as Textfield, Random, RandomElement, If, Simplify, Btn1, Btn2, MyList, a, k, f, etc. Suitable for high school mathematics teaching, helping students practice identifying the increasing and decreasing regions of quadratic functions.

GeoGebra Commands & Parameters

  1. Textfield(Name) → InputBox1
  2. Random(-5, 5) → h
  3. RandomElement(MyList) → a
  4. Random(-5, 5) → k
  5. If(a < 0, "x<" + ((-h)), "x>" + ((-h))) → CorrectIncrease
  6. Simplify(f) → p
  7. If(a < 0, "x>" + ((-h)), "x<" + ((-h))) → CorrectDecrease
  8. RandomElement(ID) → Pick, "Down"
  9. If(Pick ≟ "Up", "This Parabola Increase : " + StudentAnswer, "This Parabola Decrease :" + StudentAnswer) → text3
  10. If(Pick ≟ "Up", CorrectIncrease, CorrectDecrease) → CorrectAnswer