document.write( "Question 323902: What is the equation of the line perpendicular to the line joining (4, 2) and (3, -5) and passing through (4, 2)? \n" ); document.write( "
Algebra.Com's Answer #231807 by mananth(16946)\"\" \"About 
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(4,2 ) (3, -5)\r
\n" ); document.write( "\n" ); document.write( "slope of the line joining them is
\n" ); document.write( "m= y2-y1/x2-x1
\n" ); document.write( "m=-5-2 / 3-4
\n" ); document.write( "=-7/-1
\n" ); document.write( "m=7\r
\n" ); document.write( "\n" ); document.write( "so the general equation is y=7x+b
\n" ); document.write( "plug the value of any one poin to get the value of b
\n" ); document.write( "2=28+b
\n" ); document.write( "b=-26\r
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\n" ); document.write( "\n" ); document.write( "The line perpendicular to it will have slope o -1/7\r
\n" ); document.write( "\n" ); document.write( "The equation for that lineis y= -1/7 x -26
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