SOLUTION: please help me: Find the phase shift of the function y=cos(x+pi/4) HERE ARE THE POSSIBLE ANSWERS: a)pi/4 left b)pi/4 right c)1/4 right

SOLUTION: please help me: Find the phase shift of the function y=cos(x+pi/4) HERE ARE THE POSSIBLE ANSWERS: a)pi/4 left b)pi/4 right c)1/4 right

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Question 243316: please help me:
Find the phase shift of the function y=cos(x+pi/4)
HERE ARE THE POSSIBLE ANSWERS:
a)pi/4 left
b)pi/4 right
c)1/4 right
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Set x+pi/4=0
You get x=-pi/4, so it is a phase shift of pi/4 to the LEFT, since the value is negative.

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus
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