SOLUTION: Find the period, range, and amplitude of the cosine function y= -3 cos 4x

SOLUTION: Find the period, range, and amplitude of the cosine function y= -3 cos 4x

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Question 748184: Find the period, range, and amplitude of the cosine function y= -3 cos 4x
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
We use the general form of the equation to determine parameters

This comparison tells us the following

Period:

so

Range:

which is

Amplitude:

:)
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