document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=90453>Question 90453</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i need help with the following please:\r<BR>\n" );
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document.write( "Determine which two equations represent perpendicular lines.<BR>\n" );
document.write( "(a)  y =  5/8 x – 3<BR>\n" );
document.write( "(b)  y = 3x – 5/8<BR>\n" );
document.write( "(c)  y =  -1/3 x + 5/8 <BR>\n" );
document.write( "(d)  y =  1/3 x – 5/8  \r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #65646 by </B><A HREF=/tutors/aboutme.mpl?userid=malakumar_kos@yahoo.com><B>malakumar_kos@yahoo.com(315)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=malakumar_kos@yahoo.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=65646\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "    Determine which two equations represent perpendicular lines.<BR>\n" );
document.write( "(a) y = 5/8 x – 3<BR>\n" );
document.write( "(b) y = 3x – 5/8<BR>\n" );
document.write( "(c) y = -1/3 x + 5/8 <BR>\n" );
document.write( "(d) y = 1/3 x – 5/8 \r<BR>\n" );
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document.write( "   The condition  for the two lines to be perpendicular is \r<BR>\n" );
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document.write( "          product of their slopes = -1\r<BR>\n" );
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document.write( "     From th above given eq'ns  (b) and (c)  their slopes are 3 and -1/3 \r<BR>\n" );
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document.write( "       hence their product = 3*-1/3 = -1 which satisfies the condition<BR>\n" );
document.write( "   (b)  and   (c) are perpendicular to each other<BR>\n" );
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