document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=825365>Question 825365</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the lines described by y = (8a-8)x and y = 1/5x are perpendicular. What is the value of a ?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #497241 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=497241\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the lines described by y = (8a-8)x and y = 1/5x are perpendicular. What is the value of a ? <BR>\n" );
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document.write( "The product of the slopes must be -1.<BR>\n" );
document.write( "(8a-8)(1/5) = -1<BR>\n" );
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document.write( "8a-8 = -5<BR>\n" );
document.write( "8a = 3<BR>\n" );
document.write( "a = 3/8<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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