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Consider the function y=7+5cos(8x)

What is the amplitude?
What is the period?
What is the largest value the graph takes?

1 answer

Calculus? You have a very easy teacher.

if y=Acos(bt+p)+C

A is amplitude, b is angular frequency
and of course, b= 2PI/period

p is phase shift
C is vertical shift, or vertical bias.
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