document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=57932>Question 57932</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780618019763/algebrahomeworkh>geometry reasoning</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> decide whether lines p1 and p2 are perpendicular:\r<BR>\n" );
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document.write( "line p1: x + 8y= -4<BR>\n" );
document.write( "line p2: 4x - 2y = 10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39626 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=39626\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X+8Y=-4<BR>\n" );
document.write( "8Y=-X-4<BR>\n" );
document.write( "Y=-X/8-4 THIS LINE HAS A SLOPE OF -1/8 <BR>\n" );
document.write( "4X-2Y=10<BR>\n" );
document.write( "-2Y=-4X+10<BR>\n" );
document.write( "Y=2X-5 THIS LINE HAS A SLOPE OF 2<BR>\n" );
document.write( "THE LINES ARE NOT PERPENDICULAR<BR>\n" );
document.write( "TO BE PERPENDICULAR TO LINE 1 THE SLOPE HAS TO BE +8<BR>\n" );
document.write( "TO BE PERPENDICULAR TO LINE 2 THE SLOPE HAS TO BE -1/2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );