document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=89929>Question 89929</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is from a worksheet:\r<BR>\n" );
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document.write( "Determine whether the pair of lines is parallel, perpendicular, or neither.\r<BR>\n" );
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document.write( "3x - 4y = -6   and   8x + 6y = 2 </SPAN>\n" );
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document.write( "   Determine whether the pair of lines is parallel, perpendicular, or neither. <BR>\n" );
document.write( "3x - 4y = -6 and 8x + 6y = 2\r<BR>\n" );
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document.write( "          There are two conditions for determining if the lines are parallel or perpendicular\r<BR>\n" );
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document.write( "          1)  lines are parallel if their slopes are equal\r<BR>\n" );
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document.write( "          2) lines are perpendicular ifthe product of the slopes  = -1\r<BR>\n" );
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document.write( "       Let us find the slopes of the given eq'ns<BR>\n" );
document.write( "       bring both the eq'ns to the std form i.e, y = mx+c  where m = slope\r<BR>\n" );
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document.write( "       3x-4y = -6   3x+6 = 4y   or y = 3x/4+6/4     slope M = 3/4\r<BR>\n" );
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document.write( "       8x+6y = 2      6y = -8x+2   or  y = -8x/6+2/6 = -4x/3+1/3  slope m = -4/3\r<BR>\n" );
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document.write( "          m - -4/3   M = 3/4  hence m.M = -4/3.3/4 = -1 \r<BR>\n" );
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document.write( "   since the products of the slopes are equal to -1 the lines are perpendicular<BR>\n" );
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