document.write( "Question 771454: Determine whether the lines are parallel, perpendicular, or neither.
\n" ); document.write( "2x-y=-10
\n" ); document.write( "2x+4y=2
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Algebra.Com's Answer #470228 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
m=-A/B\r
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\n" ); document.write( "\n" ); document.write( "m1=-2/(-1)=2\r
\n" ); document.write( "\n" ); document.write( "m2=-2/4=-1/2\r
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\n" ); document.write( "\n" ); document.write( "They are perpendicular!\r
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\n" ); document.write( "\n" ); document.write( ":)
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