What is the amplitude for y = 2cos(4x + 80 degrees) + 3?

How do you find the amplitude for y = 2cos(4x+80°)+3?

 

I'm trying to help my son prepare for a final exam and this is one of the review questions.
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1 Answer

The amplitude is the multiplier of the trig function. So in this case it's 2.
by Top Rated User (1.2m points)

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