document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=446854>Question 446854</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Decide whether the lines with the equation<BR>\n" );
document.write( "5y-x=15 and y+5x=2 are perpendicular. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #307712 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=307712\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5y-x=15 and y+5x=2 are perpendicular.<BR>\n" );
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document.write( "5y=x+15<BR>\n" );
document.write( "y=x/5 +3......1<BR>\n" );
document.write( "......<BR>\n" );
document.write( "y+5x=2........2<BR>\n" );
document.write( "y = -5x+2\r<BR>\n" );
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document.write( "If the lines are perpendicular then m1*m2=-1<BR>\n" );
document.write( "slope of (1) = 1/5<BR>\n" );
document.write( "slope of (2)= -5<BR>\n" );
document.write( "m1*m2= 1/5 * -5 =-1<BR>\n" );
document.write( "so they are perpendicular </SPAN>\n" );
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