SOLUTION: How do I graph y = 4 cos x? I know there's some sort of table to help me with this...?

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Question 413547: How do I graph y = 4 cos x? I know there's some sort of table to help me with this...?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
If you know that the graph of cos(x) is a wave,
graph%28300%2C+100%2C+-10%2C+10%2C+-2%2C+2%2C+cos%28x%29%29

You can scale the graph by 4 (i.e. the amplitude is multiplied by 4) to obtain

graph%28300%2C+300%2C+-10%2C+10%2C+-5%2C+5%2C+4%2Acos%28x%29%29, which is the graph of y = 4 cos(x).