SOLUTION: Using degrees, find the amplitude and period of each function. Then graph. Y= 2cos(3(x+120)+2

Algebra ->  Trigonometry-basics -> SOLUTION: Using degrees, find the amplitude and period of each function. Then graph. Y= 2cos(3(x+120)+2      Log On


   

Question 873769: Using degrees, find the amplitude and period of each function. Then graph.
Y= 2cos(3(x+120)+2
Answer by lwsshak3(11628) About Me  (Show Source):
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Using degrees, find the amplitude and period of each function. Then graph.
Y= 2cos(3(x+120)+2
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equation for cos function: y=Acos(Bx-C)+D, A=amplitude, period=360/B
Y= 2cos(3x+360)+2
amplitude=2
B=3
period=360/B=120˚
see graph below: (x-axis scale in radians)
+graph%28+300%2C+300%2C+-1%2C+4%2C+-1%2C+10%2C+2cos%283x%2B360%29%2B2%29+