document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=114075>Question 114075</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine which two equations represent perpendicular lines.<BR>\n" );
document.write( "(a)  y = 6x – 6	(b)  y = 1/6 x + 6<BR>\n" );
document.write( "(c)  y = –1/6 x + 6<BR>\n" );
document.write( "(d)  y =1/6  x – 6\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 #83005 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=83005\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Notice if we multiply the slopes of 6 (from equation A) and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1%2F6 ALIGN=MIDDLE  ALT=\"-1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > (from C), we get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%28-1%2F6%29=-6%2F6=-1 ALIGN=MIDDLE  ALT=\"6%28-1%2F6%29=-6%2F6=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Since their product is -1, this means equations A and C are perpendicular </SPAN>\n" );
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