document.write( "Question 533168: A line that passes through (8,4) and is perpendicular to 2x-y=-7 \n" ); document.write( "
Algebra.Com's Answer #350987 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! A line that passes through (8,4) and is perpendicular to 2x-y=-7 \n" ); document.write( "** \n" ); document.write( "Standard form of equation for a straight line: y=mx+b, m=slope, b=y-intercept \n" ); document.write( "2x-y=-7 \n" ); document.write( "y=2x+7 \n" ); document.write( "slope=2 \n" ); document.write( "For line passing thru (8,4) and perpendicular to first equation \n" ); document.write( "slope=-1/2 (negative reciprocal) \n" ); document.write( "equation: y=-x/2+b \n" ); document.write( "using given point (8,4) to solve for b \n" ); document.write( "4=-8/2+b \n" ); document.write( "b=8 \n" ); document.write( "Equation of perpendicular line: \n" ); document.write( " y=-x/2+8 \n" ); document.write( " |