document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157515>Question 1157515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two perpendicular lines have the same x-intercept. An equation of one of the<BR>\n" );
document.write( "lines is y = 3x + 6 . Find the equation of the other. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #780391 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=780391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> perpendicular lines have slopes whose products = -1 (negative reciprocal)<BR>\n" );
document.write( "y=3x+6 has slope 3<BR>\n" );
document.write( "the other has slope -1/3<BR>\n" );
document.write( "y-y1=m(x-x1) point slope formula where m is slope and (x1, y1) point<BR>\n" );
document.write( "the x intercept of y=3x+6 is where y=0 and x=-2<BR>\n" );
document.write( "so we know a point on the perpendicular line is (-2, 0)<BR>\n" );
document.write( "y-0=-1/3(x+2)<BR>\n" );
document.write( "y=(-1/3)x-2/3\r<BR>\n" );
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