What is the graph of #y=sin(x+30)#?

1 Answer
Aug 26, 2014

The graph #y=sin(x+30)# looks like that of a regular sin graph except it is shifted left by 30 degrees.


Remember, that when you add or subtract from the angle in a sin graph (the variable), it shifts the graph left or right.

Adding to the variable shifts the graph left, subtracting shifts the graph right.

The red line is a regular sin, and the blue line is sin (x+30):
enter image source here

To shift the whole graph up or down, you'd add a number to the whole equation, like this: #y=sin(x)+2#

Remember that you need to know if the asker is dealing with degrees or radians. For this example I assumed we were dealing in degrees.