On Wed, 20 Aug 2008 16:38:09 -0700, rcc wrote:

I'm trying to do a polynomial curve fit (order 2) for the data below, but the
equation that the curve fit provides is way off. Any ideas why this isn't
working? It works for a similar set of data...

x y
10600 250
10600 250
10250 300
9750 350
9250 400
8625 450
8000 500
6750 550

You don't give us any clue as to how your are doing the fit?

Are you using a formula? If so, please post the formula.

Are you graphing it and using the tool within the graph? If so, you probably
need to format the formula to show more decimal places.
--ron