anonymous
  • anonymous
...
Mathematics
chestercat
  • chestercat
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amistre64
  • amistre64
you got excel?
amistre64
  • amistre64
do you know how to do a regression on it?
amistre64
  • amistre64
y = 8E-05x3 - 0.464x2 + 894.85x - 575251 well, this is what i get on a trendline in excel; the only difference might be in the last term

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amistre64
  • amistre64
well, other than doing alot of manual labor, none of those match the trendline from excel to good
amistre64
  • amistre64
the other idea i have is to let the wolf do a rref on it
amistre64
  • amistre64
the wolf tries to give an exact equation that doesnt match the options to me
amistre64
  • amistre64
i would :) ... the plots make me think this is a positive first term which means either c or d
anonymous
  • anonymous
ok...:D we r getting closer lol
amistre64
  • amistre64
http://www.wolframalpha.com/input/?i=y%3D0.00679x%5E3+%E2%80%93+0.0000802x%5E2+%2B+1.393x+%2B+0.268%2C+y%3D0.0000802x%5E3+%E2%80%93+0.00679x%5E2+%2B+0.268x+%2B+1.393%3B+x%3D1946 yeah, the purple one is the closest to me
amistre64
  • amistre64
i think its d, but i just cant say for sure. there is no real good option to me
amistre64
  • amistre64
good luck ;)

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