Question 1035982
.a) On the same set of axes, sketch and label graphs of y= sin (1/2)x and y= 2 cos x as x varies from 0 to 2 pi radians.
Graph of y = sin(x/2) 
{{{graph(400,400,-6,6,-2,2,sin(x/2))}}}
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Graph of y = 2cos(x)
{{{graph(400,400,-6,6,-2,2,2cos(x))}}}
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b) Using the same set of axes, sketch the reflection of y= sin (1/2)x in the line y= -1.
Flip each of the graphs over the line y = -1
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Each point (x,y) would become the point (x,-1-(y+1)) = (x,-y)
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Cheers,
Stan H.
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