Parabola Parameter Transformation

Parabola Parameter Transformation
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2016-06-02 09:14
This GeoGebra example dynamically explores how the parameters a, h, and k in the quadratic function y = a(x−h)² + k affect the parabola’s vertex, direction, width, and position. It illustrates core concepts of function transformations, including vertical/horizontal stretches, compressions, and translations, expressed in vertex form. Construction utilizes GeoGebra objects such as parameters a, h, k, the function f, and text labels text1–text3 to enable real-time slider-based interaction. The model is suitable for high school algebra and pre-calculus students learning function behavior, as well as teachers designing interactive lessons on quadratic transformations.

GeoGebra Commands & Parameters

  1. Numeric a(2.0)
  2. Numeric b(-3.0)
  3. Numeric h(0.0)
  4. Numeric k(2.0)
  5. f(x) = (a * (x / b - h)^(2)) + k