Question

What is the equation for shifting the standard sine curve 2 units horizontally?

Answer 1

     Just add the displacement value to variable. If this value is positive, the graph will move to the right, otherwise it will shift to left.

$f(\O)=sen(\O+x)$
 
     Where: x=displacement value

If you notice any mistake in my English, please let me know, because I am not native.