document.write( "Question 210757: Decide whether the pair of lines are parallel,perpendicular, or neither\r
\n" ); document.write( "\n" ); document.write( "3x+5y=8
\n" ); document.write( "5x-3y=5 \n" ); document.write( "

Algebra.Com's Answer #159216 by tutor_paul(519) $\"\"$ $\"About$

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Put each of these equations into y=mx+b form. m is the slope:
\n" ); document.write( "Equation #1:
\n" ); document.write( " $\"3x%2B5y=8\"$
\n" ); document.write( " $\"5y=-3x%2B8\"$
\n" ); document.write( " $\"y=-3x%2F5%2B8%2F5\"$
\n" ); document.write( "Slope of Equation #1 = -3/5
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\n" ); document.write( "Equation #2:
\n" ); document.write( " $\"5x-3y=5\"$
\n" ); document.write( " $\"-3y=-5x%2B5\"$
\n" ); document.write( " $\"y=5x%2F3-5%2F3\"$
\n" ); document.write( "Slope of Equation #2 is 5/3
\n" ); document.write( "=================
\n" ); document.write( "You can see the slopes are negative reciprocols of each other. Hence, the lines are perpendicular.
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\n" ); document.write( "Good Luck,
\n" ); document.write( "tutor_paul@yahoo.com\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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