SOLUTION: the graph of the function g(x)=3arccos(x/2) can be obtained from the basic graph of y=arccos(x) by?

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Question 924266: the graph of the function g(x)=3arccos(x/2) can be obtained from the basic graph of y=arccos(x) by?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
by stretching vertically by a factor of 3, and stretching horizontally to twice the length of the basic arccosine graph

Here's the graphs:


red line: y+=+arccos%28x%29 or y+=+cos%5E-1%28x%29
green line: g%28x%29+=+3arccos%28x%2F2%29+ or g%28x%29+=+3cos%5E-1%28x%2F2%29+