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how to find the phase shift of a trigonometric graph

 Jan 18, 2019
 #1
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In the form

 

y = trig function (Bx + C)

 

Factor out B

 

y  = trig function B( x + C/B )

 

Set   x + C/B = 0   and solve for   X

 

Example

 

sin ( 3x - pi )

 

sin 3(x - pi/3)

 

Set

 

x + pi/3  = 0

 

x =  -pi/3          this is the phase shift

 

 

 

cool  cool cool

 Jan 18, 2019

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