SOLUTION: I need to find the (1) amplitude, (2) period, and (3) phase shift - without graphing - for this equation: y = -cos (x/2 + pi/2) Thank you in advance for any help.

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Question 1063801: I need to find the (1) amplitude, (2) period, and (3) phase shift - without graphing - for this equation:
y = -cos (x/2 + pi/2)
Thank you in advance for any help.
Answer by Edwin McCravy(20064)   (Show Source): You can put this solution on YOUR website!
 or 










Now you can finish by substituting.  If you have trouble,
tell me about it in the thank-you note form below.

Edwin
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