Determine the amplitude, period, quater period, and phase shift. Then, graph one period of the function.   y=2cos(4x+pi/2)

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Determine the amplitude, period, quater period, and phase shift. Then, graph one period of the function.

 

y=2cos(4x+pi/2)

Expert Solution
Step 1
 
Use the form  to find the variables used to find the amplitude, period, phase shift, and vertical shift.
 
Find the amplitude .
Amplitude: 
 
Find the period using the formula .
 
Period: 
 
Find the phase shift using the formula .
 
Phase Shift: 
 
Find the vertical shift .
Vertical Shift: 
.
Amplitude: 
Period: 
Phase Shift: 
Vertical Shift: 

 

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