I have an equation H = A + B/u + Cu

I have a certain u value, for which I get a dependent H value. Using those I need to solve A, B, and C.

My data is:
u H
u=350 , H=1.25
300, 1.05
250, 1.45
200, 1.95
150, 2.65
75, 5.20

Using either algebra, excel, or my ti83 I can solve for A, B, and C. But my answer changes depending on which 3 sets of numbers I choose to utilize for my equation. Is there any way I can utilize ALL my sets of u and H to solve for an averaged A, B, and C?

I figured out my own answer. Turns out that there isn't any good way to average all the sets into one solution. You just have to take a "best fit" approach and choose the 3 sets of data that best fit the model you want.

right, since what you posted are most likely emperical data
but looking at the graphs posted online, a & b are not simply constants when plotting the whole curve
you could correlate them to u and make everything in terms of u

This post was edited by saber_x3 on May 15 2014 08:51am

Your ti83 can solve a best fit.