How do you graph and list the amplitude, period, phase shift for $y=4cos2x$ ?

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Answer 1 · 2016-06-26T14:07:58

Amplitude $A=4$
Period $T=pi$
Phase shift $C=0$

Amplitude $A=4$

Period $T=(2pi)/2=pi$

Phase shift $C=0$

The graph of $y=4*cos 2x$

![Desmos.com]( useruploads.socratic.org )

God bless...I hope the explanation is useful.

How do you graph and list the amplitude, period, phase shift for y=4cos2xy=4cos2x?