precalculus
posted by lisa
graph y=sin(xpie/4) (couldn't find pie sign on my keyboard)
Use 3.1459
We can't draw graphs for you here, but you can certainly make a table of values of x and corresponding values of y, and draw the graph yourself. you might save a little time by recognizing that
sin (x  pi/4) =
[(sqrt 2)sin x]/2  [(sqrt 2)cos x]/2
When x = pi/4, y = 0.
When x=0, y = (sqrt 2)/2
You can also just plot a sine wave on shifted coordinates, treating x = pi/4 y = 0 as the new origin
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