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Topic: Slope of Pascal Line
Replies: 3   Last Post: Jun 13, 2013 9:08 PM

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Posts: 204
Registered: 12/6/04
Re: Slope of Pascal Line
Posted: Jun 10, 2013 1:45 PM
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> Conjecture in Projective geometry.
>
> Slope of Pascal line GHK can be expressed in terms of
> four slopes of lines AB, BC, DE and EF in the first
> figure of:
>
> http://en.wikipedia.org/wiki/Pascal%27s_theorem
>
> TIA for proof or its contradiction.
>
> Regards
> Narasimham


Narasimham,
I might be missing something, the proof seems trivial (except for the special case of parallel lines).
Lines AB and DE cross at point G
Lines BC and EF cross at point K

Solve for points G and K, then determine slope of line GK.



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