document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=466356>Question 466356</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What must be true about the slopes of two perpendicular lines, neither of which is vertical?<BR>\n" );
document.write( "a. The slopes are equal.<BR>\n" );
document.write( "b. The slopes have product 1.<BR>\n" );
document.write( "c. the slopes have product -1. <BR>\n" );
document.write( "d. One of the slopes must be 0. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319987 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=319987\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> c) The slopes have product -1. For example, two lines with slopes 3/4 and -4/3 are perpendicular. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );