Graph the function y = |4 cos x|. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.2. 3.4.

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Presentation transcript:

Graph the function y = |4 cos x|

Graph the following three functions on a common screen: y = 3 x, y = - 3 x, y = 3 x cos 4 x