document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1114351>Question 1114351</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A satellite dish is shaped like a paraboloid of revolution. This means that it can be formed by rotating a parabola around its axis of symmetry. The receiver is to be located at the focus. If the dish is 36 feet across at its opening and 3 feet deep at its center, where should the receiver be placed?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #729328 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=729328\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Vertex as the origin, concave upward.<BR>\n" );
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document.write( "Two points other than (0,0) are (-18,3) and (18,3), unit being feet.\r<BR>\n" );
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document.write( "OR equivalently\r<BR>\n" );
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document.write( "Let p be distance above the vertex to put the receiver  (placement of the focus).\r<BR>\n" );
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