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September 20, 2014

September 20, 2014

Posted by **Taylor** on Sunday, July 24, 2011 at 2:43pm.

- Gemotry -
**Henry**, Sunday, July 24, 2011 at 8:15pmA(2,4) , B(3,1), C(15,7).

The altitude is perpendicular to BC.

Therefore, it's slope is the negative reciprocal of BC.

m = (7-1) / (15-3) = 6/12 = 1/2=slope

of BC.

m2 = -2/1 = -2 = Slope of altitude.

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