Question 584367: HOw do you graph 1/2cos2x+1
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! How do you graph 1/2cos2x+1
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Equation for graphing cos function: y=Acos(Bx-C), A=amplitude, Period=2π/B, Phase shift=C/B.
For given equation:
Amplitude=1/2
B=2
Period=2π/2=π
1/4 Period=π/4
Phase shift=0
..
Graphing for one period:
On an xy coordinate system where the x-axis scale is in radians, make the following tick marks:
π/4, π/2, 3π/4, and π
Coordinates for the basic cos curve: (0,1/2), (π/4,0), (π/2,-1/2‚ (3π/4,0), (π, 1/2)
Coordinates for the final cos curve (bumping the y-coordinate up one unit):
(0,3/2), (π/4,1), (π/2,1/2‚ (3π/4,1), (π, 3/2)
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