document.write( "Question 427292: Determine the equation of the line passing through the point (2,9)and perpendicular to the line with equation 5x - y =7
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Algebra.Com's Answer #297149 by mananth(16946)\"\" \"About 
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5x-y=7
\n" ); document.write( "Find the slope of this line
\n" ); document.write( "-y=-5x-7
\n" ); document.write( "Divide by -1
\n" ); document.write( " y =5x+ 7
\n" ); document.write( "Compare this equation with y=mx+b
\n" ); document.write( "slope m =5.00
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\n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal
\n" ); document.write( "m1*m2=-1
\n" ); document.write( "The slope of the required line will be -0.20 -0.2 =
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\n" ); document.write( "m=-0.20 ,point (2,9)
\n" ); document.write( "Find b by plugging the values of m & the point in
\n" ); document.write( "y=mx+b
\n" ); document.write( "9=-0.4+b
\n" ); document.write( "b=9.4
\n" ); document.write( "m=-0.2
\n" ); document.write( "The required equation is y=-0.2x+ 9.4
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