SOLUTION: Graph the function y=4cos1/2theta

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Question 260270: Graph the function y=4cos1/2theta
Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
The normal amplitude of cos is 1. The 4 in front of cos means the amplitude will be 4.

The normal period of cos is 360 degree (or 2pi radians). The 1/2 in front of theta means that the period will be twice a long: 720 degrees (or 4pi radians).

There is no vertical or horizontal shift.

Here are the graphs of both y = cos(theta) and your equation. I'll leave it up to you to figure out which is which. (Note: I do not how to get Algebra.com's graphing software to use degrees. So the graph below is in radians. You will have to convert the radians to degrees using the fact that 2pi radians equals 360 degrees.)
graph%28400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+cos%28x%29%2C+4%2Acos%280.5x%29%29