document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=57885>Question 57885</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780618019762/algebrahomeworkh>geometry reasoning</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> lines a and b are perpendicular. The slope of line a is given. What is the slope of line b?\r<BR>\n" );
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document.write( "-1/2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39558 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=39558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> lines a and b are perpendicular. The slope of line a is given. What is the slope of line b?\r<BR>\n" );
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document.write( "-1/2<BR>\n" );
document.write( "Perpendicular lines have slopes that are negative reciprocals of each other, so change the slopes sign and flip it upside down.<BR>\n" );
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document.write( "Line a has a slope of -1/2<BR>\n" );
document.write( "so line b has a slope of 2/1=2<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
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