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## Main Question or Discussion Point

Hey guys, long time lurker, first time poster!

Just having some trouble with something..Im probably just looking at it the wrong way, but I was wondering if anyone could help me with this..

Im trying to prove that by choosing b0 and b1 to minimize

http://img24.imageshack.us/img24/7/partas.jpg [Broken]

you obtain the least squares estimators, namely:

http://img15.imageshack.us/img15/3641/partbx.jpg [Broken]

also just wondering how you can prove that OLS minimizes the sum of squares function.

I know it has something to do with second derivatives, but im a bit stuck.

Thanks!

Just having some trouble with something..Im probably just looking at it the wrong way, but I was wondering if anyone could help me with this..

Im trying to prove that by choosing b0 and b1 to minimize

http://img24.imageshack.us/img24/7/partas.jpg [Broken]

you obtain the least squares estimators, namely:

http://img15.imageshack.us/img15/3641/partbx.jpg [Broken]

also just wondering how you can prove that OLS minimizes the sum of squares function.

I know it has something to do with second derivatives, but im a bit stuck.

Thanks!

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