document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=688721>Question 688721</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this. Find the equation of the parabola determined by the given information. Focus is (0,- sqrt (7)) and the directrix is y= sqrt (7) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #425698 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=425698\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this. Find the equation of the parabola determined by the given information. Focus is (0,- sqrt (7)) and the directrix is y= sqrt (7)<BR>\n" );
document.write( "This is a parabola that opens downward.<BR>\n" );
document.write( "Its standard form of equation: (x-h)^2=-4p(y-k)<BR>\n" );
document.write( "vertex:(0,0)<BR>\n" );
document.write( "axis of symmetry: x=0 or y-axis<BR>\n" );
document.write( "p=&#8730;7 (distance from vertex to directrix and to focus on the axis of symmetry)<BR>\n" );
document.write( "4p=4&#8730;7<BR>\n" );
document.write( "equation of parabola: x^2=-4&#8730;7 y </SPAN>\n" );
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