document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1121258>Question 1121258</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the value of 'a' for which the graph of the first equation is perpendicular to the graph of the second equation<BR>\n" );
document.write( "Exp: y=ax-5; 3y-4x=7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #737056 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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/cgi-bin/show-face.mpl?user=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=737056\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solving the 2nd equation for y:   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+%284%2F3%29x%2B%287%2F3%29+ ALIGN=MIDDLE  ALT=\"+y+=+%284%2F3%29x%2B%287%2F3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "This is the slope-intercept form of the line, where the slope is 4/3.\r<BR>\n" );
document.write( "\n" );
document.write( "Perpendicular lines will have slopes that are related by  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m%5B2%5D+=+%28%28-1+%29%2F+m%5B1%5D%29+ ALIGN=MIDDLE  ALT=\"+m%5B2%5D+=+%28%28-1+%29%2F+m%5B1%5D%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >   \r<BR>\n" );
document.write( "\n" );
document.write( "so  a = -1 / (4/3) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+highlight%28+-3%2F4+%29+ ALIGN=MIDDLE  ALT=\"+highlight%28+-3%2F4+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );