How do you graph #y=3cos(x-2)#?

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Nov 17, 2017

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See below.

Explanation:

Well, we start with the common form of the graph, this is #y=cosx#
graph{cosx [-5, 5, -2.5, 2.5]}

Now, we are going to move the graph 2 units to the right, this is #y=cos(x-2)#
graph{cos(x-2) [-5, 5, -2.5, 2.5]}

Finally, we are going to stretch the graph in the y-axis with the factor 3, this is #y=3cos(x-2)#
graph{3cos(x-2) [-10, 10, -5, 5]}

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