# Graphing over two full periods?

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• April 15th 2010, 10:49 PM
florx
Graphing over two full periods?
Without using a calculator, graph y = 2 sin (3t + pi/2) over two full periods. Be sure to label the units on your axes.

So the period of this function is 2pi/3. When they asked over two full periods, do we just multiply 2pi/3 by 2 or is there something else to it?

Thanks.
• April 16th 2010, 03:24 AM
HallsofIvy
One period is from x= 0 to $x= \frac{2\pi}{3}$ so "two periods" is from x= 0 to $x= \frac{4\pi}{4}$.