document.write( "Question 432324: Determine whether the lines are parallel, perpendicular, or neither.
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\n" ); document.write( "y = 5( 4x + 9) and y = - 1/20x - 4
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\n" ); document.write( "A)
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\n" ); document.write( "Parallel
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\n" ); document.write( "B)
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\n" ); document.write( "Perpendicular
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\n" ); document.write( "C)
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\n" ); document.write( "Neither
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Algebra.Com's Answer #299779 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
I'm sure Stan meant to say \"perpendicular.\" If two lines have slopes that multiply to -1, the lines are perpendicular. \n" ); document.write( "
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