Question 813587:  y=2cos(3.14x+3.14)-2. 
I am pretty sure my graph is right. I need amplitude, period, phase shift, and midline and these are the answers I have come up with: 
Amp=2, Period=2, phase shift= 1, and midline=-2 
I just need to know if I am on the right track. 
 Answer by Alan3354(69443)      (Show Source): 
You can  put this solution on YOUR website! y=2cos(3.14x+3.14)-2. 
I am pretty sure my graph is right. I need amplitude, period, phase shift, and midline and these are the answers I have come up with: 
Amp=2, Period=2, phase shift= 1, and midline=-2 
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Phase shift = -1, tho it looks the same. 
 
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