document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1143861>Question 1143861</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The light bulb of a parabolic reflector is placed at the focus of the reflector for better reflection. Suppose that the reflector is 18 inches and 10 inches deep. What is the equation of the parabola in the parabolic reflector?<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 #764806 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52804)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=764806\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "In this problem the words related to the light bulb and to the focus are all &nbsp;IRRELEVANT.\r<BR>\n" );
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document.write( "The correct formulation after editing, &nbsp;removing all unnecessary words, &nbsp;is <U>THIS</U> :\r<BR>\n" );
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document.write( "    A parabolic reflector has the opening of 18 inches in diameter and is 10 inches deep. \r\n" );
document.write( "    What is an equation of the parabola in the parabolic reflector?\r\n" );
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document.write( "The rest of the words in the original formulation are only to make an obstacle for a reader <BR>\n" );
document.write( "to quick and correct understanding the problem.\r<BR>\n" );
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