SOLUTION: PLEASE HELP ME SOLVE THIS CIRCULAR FUNCTIONS AND THEIR GRAPHS: What is the amplitude of y=4 sin 3 x?

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Question 240803: PLEASE HELP ME SOLVE THIS CIRCULAR FUNCTIONS AND THEIR GRAPHS:
What is the amplitude of y=4 sin 3 x?

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
The biggest value any sin can get is 1. So the amplitude is set by the coefficient 4. look at this graph -->
http://www.wolframalpha.com/input/?i=+y%3D4+sin(3x)