plotting a normalized curve fit

Hi all,

I'm using the curve fit tool for exponential functions (exp2), with the center and scale option selected. My question is how do I work back from this? from the general equation I know how to get the values for term 1 and 2, coeffvalues(fitresults). But how do I get the normalized value and incorporate that one back in the equation Using a*exp(x*b) + c*exp(x*d) works if I don't normalize so I'm something when I do normalize since just using the coeffvalues with x is incorrect.