document.write( "Question 583354: Decide if these equations represent parallel lines, perpendicular lines, or neither\r
\n" ); document.write( "\n" ); document.write( "4x+8y=12
\n" ); document.write( "y=2x+10\r
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\n" ); document.write( "\n" ); document.write( "y=3x+2
\n" ); document.write( "5x+2y=20\r
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\n" ); document.write( "\n" ); document.write( "y=3x+2
\n" ); document.write( "y=3/1x+15
\n" ); document.write( "

Algebra.Com's Answer #372411 by Alan3354(69443)\"\" \"About 
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Decide if these equations represent parallel lines, perpendicular lines, or neither
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\n" ); document.write( "Solve for y.
\n" ); document.write( "Then the slope, m, = the coefficient of x
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\n" ); document.write( "4x+8y=12
\n" ); document.write( "y=2x+10
\n" ); document.write( "--------------
\n" ); document.write( "Solve for y
\n" ); document.write( "4x+8y=12x
\n" ); document.write( "8y = 8x
\n" ); document.write( "y = x
\n" ); document.write( "Slope = 1
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\n" ); document.write( "y=2x+10
\n" ); document.write( "Slope = 2
\n" ); document.write( "If the slopes are equal, they're parallel.
\n" ); document.write( "If the slopes are negative inverses, they're perpendicular.
\n" ); document.write( "These 2 are:
\n" ); document.write( "Neither
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\n" ); document.write( "Do the others the same way.
\n" ); document.write( "y=3x+2
\n" ); document.write( "5x+2y=20\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y=3x+2
\n" ); document.write( "y=3/1x+15
\n" ); document.write( "
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