You can put this solution on YOUR website! This question I would suggest reposting with a more clearer question. However, I will take stab in the dark and assume the question is:
Knowing that actually can be rewritten as:
so is actually or simply
which is ~
Keep in mind that turn text into a math formula is stored here:
http://www.algebra.com/services/rendering/regression.mpl?f=regression.txt