document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199364>Question 1199364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cable of a horizontal suspension bridge are supported by two towers 120 feet apart and 40 feet high. if the cable is 10 feet above the floor of the bridge at the center. how high is the cable 10 feet from the end of the bridge? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #833218 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=833218\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The cable of a horizontal suspension bridge are supported by two towers 120 feet apart and 40 feet high. if the cable is 10 feet above the floor of the bridge at the center. how high is the cable 10 feet from the end of the bridge?<BR>\n" );
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document.write( "It's not specified, but it's usually assumed that the cables are in the shape of a parabola.  It's actually a catenary under its own weight, but the load of the bridge makes the distinction irrelevant.<BR>\n" );
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document.write( "Assuming it's a parabola:<BR>\n" );
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document.write( "Put the Origin at the center of the cable (above the center of the bridge).  Use the 3 points, (-60,30), (0,0) and (60,30) to find the equation.<BR>\n" );
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document.write( "Can you do the rest? </SPAN>\n" );
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