document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=966743>Question 966743</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the equation of a parabola with the directrix of x=7 that has its vertex at the origin </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #590842 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=590842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The focus is  (0,0), and the meaning of the directrix is (7,y).  Use the definition of a parabola with the Distance Formula.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28x-7%29%5E2%2B%28y-y%29%5E2%29=sqrt%28%28x-0%29%5E2%2B%28y-0%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28x-7%29%5E2%2B%28y-y%29%5E2%29=sqrt%28%28x-0%29%5E2%2B%28y-0%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Simplify that. </SPAN>\n" );
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