Determine the amplitude and period of the following function without graphing. y= -7 cos (3x)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.5: Trigonometric Graphs
Problem 5E
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Determine the amplitude and period of the following function without graphing.
y = -7 cos (3x)
The amplitude is
The period is
(Simplify your answer. Type an exact answer in terms of T. Use integers or fractions for any numbers in the expression.)
Transcribed Image Text:Determine the amplitude and period of the following function without graphing. y = -7 cos (3x) The amplitude is The period is (Simplify your answer. Type an exact answer in terms of T. Use integers or fractions for any numbers in the expression.)
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