Trigonometric Functions with Four Parameters

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This Demonstration plots the graph of for various trig functions . Notice how changing the parameters maintains the overall shape of the graph, but stretches, squishes, or moves it. Can you explain why each parameter changes the graph the way it does? Are there relationships between the way parameter changes affect the graph and the location where they appear in the equation?

Contributed by: Abby Brown (March 2011)
Open content licensed under CC BY-NC-SA


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