document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=927274>Question 927274</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help with: The main cables of a suspension bridge  are ideally parabolic. The cables over a bridge  that is 400 feet long are attached to towers that are 100 feet tall. The lowest point of the cable is 40 feet above the bridge.<BR>\n" );
document.write( "a. Find the coordinates of the vertex and the tops of the towers if the bridge represents the x-axis and the axis of symmetry is the y-axis<BR>\n" );
document.write( "b. Find an equation that can be used to model the cables. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #562857 by </B><A HREF=/tutors/aboutme.mpl?userid=brysca><B>brysca(112)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=brysca><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=brysca><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=562857\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solution posted below<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=brysca&illustration_name=solution_927274\">.<BR>\n" );
document.write( "hope this helps!<BR>\n" );
document.write( "Also, to state your final answer in part b, substitute k back in to get a final equation of<BR>\n" );
document.write( "y=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2F2000%29%2A%28x%29%5E2%2B40 ALIGN=MIDDLE  ALT=\"%283%2F2000%29%2A%28x%29%5E2%2B40\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+500%2C500%2C+-200%2C+200%2C+0%2C+100%2C+%283%2F2000%29%2A%28x%5E2%29%2B40%29+ ALIGN=MIDDLE  ALT=\"+graph%28+500%2C500%2C+-200%2C+200%2C+0%2C+100%2C+%283%2F2000%29%2A%28x%5E2%29%2B40%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );