Posted by **Karen** on Saturday, October 14, 2006 at 3:32pm.

How do I graph sin and cosin

example: graph y=-4sin(x + 3.14)

Your function is the sin function shifted by pi units to the left.

You need to study the sin function and know how to graph it. There should be a picture of it in your text, it's a very commonly used funtion that has a wave pattern.