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for the following set of data find an appropriate regression equation (linear, exponential, or logarithmic) state your reason x: 1,2,3,4,5 y: 112,114, 119, 122, 129

Mathematics
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\[\sum_{n=1}^{3}i^(n-1)\]
in the second equation the right side of the sigma should read i^(n-1)
do you mean i as in imaginary number?

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Other answers:

\[\sum_{n=1}^{3}i^{(n-1)}\] where i^2 =-1?
yes
\[\sum_{n=1}^{3}i^{n-1} = i^{1-1} + i^{2-1} + i^{3-1}\]
\[i^0 + i + i^2 = 1 + i -1 = i\]
okay thats what i got, thank you. can you take a look at the problem above that
oh for that u need to use a calculator, do u want me to write the equation of the line?
yeah i understand that but how would you know which type of regression to use?
I think you just try every single one, and the one that goes through the most points will be the one to use, because calculator would approximate all equations. So just try all three, and whichever one comes closest to as many points as possible will be the one to use.
well, that's how I used to do it, back in hs
how do i graph it? i put in the type of regression and then (L1,L2) then how do I graph it?
okay what calculator are you using?
Ti 84? 89? 83?
TI-83
http://www.mathstore.net/graphing-calculators/TI-84/how-to-linear-regression.php
yeah i got that but my graph axis are bolded i dont know how to get out of that i clicked zoom out a couple of times but it wont work
try zoom fit
its not doing antyhing
try decimal
what does that mean?
i got it thank you
okay i gtg now and that meant zoom decimal
nothings graphing though
which means u have to try a different regression
and make sure the plots are selected in the y-editor
sorry i gtg now, will try to respond later again
yeah they are
ok thanks

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