Math question -> Curves

[Airhog]

Im working on a excel spreadsheet that can shows the price ranges of a Goalkeeper. I have ran into one problem, and that is a lack of data. However, I believe that I can Extrapolate a good amount of the data rather accurately. My question concerns A curve. The range of prices is a curve. Meaning a player with a skill of 1 has a lot bigger range of prices than a skill of 6. Can someone give me a formula that will allow me to predict the curve?

[sterlingice]

Well, it depends. What kindof curve do you want? First order (straight line), Second order (parabola), or what (equations start getting funky after that)?

SI

[dacman]

I'd guess the function you're looking for would be along the lines of:

A + B ln x

A,B -- coefficients you would have to work out
ln -- the natural log
x -- skill

[mrushh]

In your formula, 'A' is not a coefficient, it is a constant, as it has no variable.