document.write( "Question 123657This question is from textbook Structure and Method Book 1
\n" ); document.write( ": indicate which of the following sets of lines are parallel,perpendicular, or neither.
\n" ); document.write( "y=2x-5
\n" ); document.write( "y=2x+5\r
\n" ); document.write( "\n" ); document.write( "3x+y=5
\n" ); document.write( "-x+3y=6\r
\n" ); document.write( "\n" ); document.write( "3x+y=5
\n" ); document.write( "x+y=3
\n" ); document.write( "

Algebra.Com's Answer #90724 by nadinadan(32)\"\" \"About 
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If two line segments are parallel, their slopes are the same.
\n" ); document.write( "If two line segments are perpendicular, their slopes are negative reciprocals.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y=2x-5 and y=2x+5
\n" ); document.write( "These 2 equations have the ssame slope 2 and 2 so these are parallel lines.\r
\n" ); document.write( "\n" ); document.write( "3x+y=5 write it in the y=mx+b form y=-3x+5
\n" ); document.write( "-x+3y=6 We need to write this in the form of y = mx+b so y= 1/3 x +2
\n" ); document.write( "These graphs have the slope -3 and the other is 1/3 so these are perpendicular.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "3x+y=5 y=-3x+5
\n" ); document.write( "x+y=3 y=-x+3
\n" ); document.write( "These are not parallel nor perpendicular.
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