document.write( "Question 603741: Are the lines 3x - y = -2 and x - 3y = -9 parallel, perpendicular or neither?
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Algebra.Com's Answer #380788 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Are the lines 3x - y = -2 and x - 3y = -9 parallel, perpendicular or neither \n" ); document.write( "** \n" ); document.write( "3x - y = -2 \n" ); document.write( "y=3x+2 \n" ); document.write( "slope=3 \n" ); document.write( ".. \n" ); document.write( "x - 3y = -9 \n" ); document.write( "3y=x+9 \n" ); document.write( "y=x/3+3 \n" ); document.write( "slope=1/3 \n" ); document.write( ".. \n" ); document.write( "If lines were parallel, slopes would be the same. \n" ); document.write( "If lines were perpendicular, slopes would be negative reciprocals of each other.\r \n" ); document.write( "\n" ); document.write( "lines are neither parallel or perpendicular \n" ); document.write( " |