document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=404650>Question 404650</A>: <I><SPAN STYLE=\"word-break: break-all;\"> determine weather the graphs of the equations are perpendicular\r<BR>\n" );
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document.write( "4x-3y=8<BR>\n" );
document.write( "4y-3x=7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #285954 by </B><A HREF=/tutors/aboutme.mpl?userid=subudear><B>subudear(62)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=subudear><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=285954\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4x-3y=8    .....(1)<BR>\n" );
document.write( "4y-3x=7    .....(2)\r<BR>\n" );
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document.write( "slope for first line y = (4/3)x - 8/3 is m1 = 4/3<BR>\n" );
document.write( "slope for second line y = (3/4)x + 7/4 is m2 = 3/4\r<BR>\n" );
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document.write( "for the lines to be perpendicular m1*m2 should be equal to -1\r<BR>\n" );
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document.write( "m1*m2 = (4/3)*(3/4) = 1\r<BR>\n" );
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document.write( "so these lines are not perpendicular </SPAN>\n" );
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