How to represent light as a sinusoidal function

[hlapolar]

I have seen many equations light as a wave but none of which have represented light as a simple sinusoidal function. I want to be able to graph light waves on a cartesian plane as one sine curve. I know that light isn't that simple but could light be represented as a 2 dimensional sine curve. Also what would feasible units for amplitude be? Is there a way to represent amplitude both in v/m and tesla for electric and magnetic fields? If you could explain each part of the equation that would be great.

 

[bp_psy]

You are probably looking for something more quantitative but this site helped me get some sort of visual understating of E&M waves.
http://www.enzim.hu/~szia/cddemo/edemo0.htm
http://www.enzim.hu/~szia/emanim/emanim.htm