document.write( "Question 1065320: Okay I have to find the orthocenter of a triangle with the coordinates of P(2,5) Q(8,5) and R(8,1). If you map it out you get one horizontal side and one vertical side... A right triangle. My math teacher doesn't know how to teach. Please help me find the orthocenter. It's due tomorrow. \n" ); document.write( "
Algebra.Com's Answer #680471 by josgarithmetic(39620)\"\" \"About 
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Find the equation for the line perpendicular to line PQ, containing point R.\r
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\n" ); document.write( "\n" ); document.write( "Find the equation for the line perpendicular to line QR, containing point P.\r
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\n" ); document.write( "\n" ); document.write( "These two equations intersect at the triangle's orthocenter.\r
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\n" ); document.write( "\n" ); document.write( "To be more complete, also find the equation of the line perpendicular to line PR, containing point Q. All three found lines should intersect at the orthocenter.
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