document.write( "Question 856427: Through (9,-4), perpendicular to -5x-4y=-29 \n" ); document.write( "
Algebra.Com's Answer #515930 by mananth(16949)\"\" \"About 
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-5 x + -4 y = -29
\n" ); document.write( "Find the slope of this line
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\n" ); document.write( "-4 y = 5 x -29
\n" ); document.write( "Divide by -4
\n" ); document.write( " y = -5/ 4 x + 29/4
\n" ); document.write( "Compare this equation with y=mx+b, m= slope & b= y intercept
\n" ); document.write( "slope m = -5/4
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\n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal 4/5
\n" ); document.write( "Because m1*m2 =-1
\n" ); document.write( "The slope of the required line will be 4/5
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\n" ); document.write( "m= 4/5 ,point ( 9 , -4 )
\n" ); document.write( "Find b by plugging the values of m & the point in
\n" ); document.write( "y=mx+b
\n" ); document.write( "-4 = 36/ 5 + b
\n" ); document.write( "b= -56/5
\n" ); document.write( "m= 4/5
\n" ); document.write( "The required equation is y = 4/ 5 x -56/ 5
\n" ); document.write( "m.ananth@hotmail.ca
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