document.write( "Question 150343: mam/ser,\r
\n" ); document.write( "\n" ); document.write( "please help me to take an advantage about parallel and perpendicular lines..this is my question..
\n" ); document.write( "what is the shortcut methods of the parallel and perpendicular equation?
\n" ); document.write( "i hope you must response...
\n" ); document.write( " arvy rose juganas
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Algebra.Com's Answer #110325 by ankor@dixie-net.com(22740)\"\" \"About 
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please help me to take an advantage about parallel and perpendicular lines..this is my question..
\n" ); document.write( "what is the shortcut methods of the parallel and perpendicular equation?
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\n" ); document.write( "Not sure what you mean by a \"shortcut method\", however:
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\n" ); document.write( "Parallel line have the same slope:
\n" ); document.write( "in the form y = mx + y (m=slope)
\n" ); document.write( "An example; m=+.4
\n" ); document.write( "y = .4x + 4
\n" ); document.write( "and
\n" ); document.write( "y = .4x - 2
\n" ); document.write( "These lines are parallel because the slope is .4 in both cases, as you can see
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-5%2C+5%2C+-5%2C+5%2C+.4x%2B4%2C+.4x-3%29+\"
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\n" ); document.write( "Perpendicular lines the relationship: m1 * m2 = -1
\n" ); document.write( "An example:
\n" ); document.write( " the 1st equation slope; m1 = -\"1%2F2\"
\n" ); document.write( "y = \"-1%2F2\"x + 5
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\n" ); document.write( "Calculate the slope of the 2nd equation using the above relationship
\n" ); document.write( "-\"1%2F2\" * m2 = -1
\n" ); document.write( "m2 = \"%28-1%29%2F%28-1%2F2%29\"
\n" ); document.write( "m2 = +2
\n" ); document.write( "2nd equation: y = 2x+5
\n" ); document.write( ":
\n" ); document.write( "Looks like this
\n" ); document.write( "\"+graph%28+300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2C+-.5x%2B5%2C+2x%2B5%29+\"
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