document.write( "Question 771455: Determine whether the lines are parallel, perpendicular, or neither.
\n" ); document.write( "Line 1 passes through (0, 3) and (2, 5)
\n" ); document.write( "Line 2 passes through (5, -4) and (-3, 3)
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Algebra.Com's Answer #470251 by Cromlix(4381)\"\" \"About 
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Line 1)
\n" ); document.write( "Gradient = y2-y1/x2-x1
\n" ); document.write( "Gradient = 5 - 3/2 - 0
\n" ); document.write( "Gradient = 2/2 = 1
\n" ); document.write( "Line 2)
\n" ); document.write( "Gradient = y2-y1/x2-x1
\n" ); document.write( "Gradient = 3 -(-4)/-3 - 5
\n" ); document.write( "Gradient = 7/-8
\n" ); document.write( "For two lines to be parallel
\n" ); document.write( "gradients must equal one another
\n" ); document.write( "m1 = m2
\n" ); document.write( "For two lines to be perpendicular
\n" ); document.write( "to one another, their gradients
\n" ); document.write( "must multiply together to give -1
\n" ); document.write( "m1*m2=-1
\n" ); document.write( "These lines are neither parallel or
\n" ); document.write( "perpendicular.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "
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