Hello there,

I have done a few observations:

Code:

x | y
--------+-------
150 | 7.4
130 | 11.6
110 | 18.8
90 | 33.2
70 | 61.4
50 | 120.8
30 | 239.8
20 | 335.0
10 | 453.0
5 | 518.8
0 | 587.4
-5 | 655.2
-10 | 721.0
-20 | 833.4
-30 | 908.8
-40 | 959.6

I plotted them in on my calculator and tried all the regressions it could calculate for me. They are: LinReg, QuadReg, CubicReg, QuartReg, ExpReg, PwrReg. None of these could calculate a regression that I thought was close enough for my data.

What I wanted to ask is either:

a) If somebody with a better calculator would calculate a really close regression for me, or

b) let me know of some website where I can do it myself.

Thank you for your time.

Kind regards,

Marius Jonsson