document.write( "Question 380407: 17. Find the slope of the line that is (a) parallel and (b) perpendicular to the line through the pair of points.\r
\n" ); document.write( "\n" ); document.write( "(-7,-2) and (1,7)\r
\n" ); document.write( "\n" ); document.write( "Type an integer or simplified fraction.
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Algebra.Com's Answer #270037 by mananth(16946)\"\" \"About 
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(-7,-2) and (1,7)
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\n" ); document.write( "slope m of a line = (y2-y1)/(x2-x1)
\n" ); document.write( "m=(7-(-2))/(1-(-7))
\n" ); document.write( "m=9/8
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\n" ); document.write( "The line parallel to the line passing through above points will have same slope
\n" ); document.write( "m= 9/8
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\n" ); document.write( "For line perpedicular it will have a slope which is negative reciprocal of the slope
\n" ); document.write( "m=-8/9
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\n" ); document.write( "m.ananth@hotmail.ca
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