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Fit Sinusoidal Graph

Fit Sinusoidal Graph
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2012-04-10 22:58
FunctionTrigonometryCoordinate GeometrySlider AnimationGraphing
This example demonstrates how students can practice finding an equation to match a sinusoidal graph. It includes vertical and horizontal dilations and translations; constructed using GeoGebra commands/objects a (parameter) and f (function); suitable for high school students learning trigonometry and coordinate geometry.

GeoGebra Commands & Parameters

  1. {0.5, 0.3333333333333333, 0.25, 1.5, 2, 3}
  2. f(x) = Random[1, 5] * sin((x - Random[-3, 3] * π / 2) / Element[a, Random[1, 6]]) + Random[-5, 5]