document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=123500>Question 123500</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My question is \"Use the definition of a parabola and the distance formula to find the equation of a parabola with directix y=2 and focus (-3,6)\"\r<BR>\n" );
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document.write( "Please help! Also looking for a possible online math tutor. Please e-mail me with information, Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #90607 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=90607\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"definition of a parabola\" __ the locus of points equidistant from a point (focus) and a line (directrix)\r<BR>\n" );
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document.write( "for a point (x,y) __ the distance from y=2 is y-2\r<BR>\n" );
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document.write( "the distance from (-3,6) is sqrt((x+3)^2+(y-6)^2)\r<BR>\n" );
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document.write( "(y-2)^2=(x+3)^2+(y-6)^2 __ y^2-4y+4=x^2+6x+9+y^2-12y+36 __ 8y=x^2+6x+41\r<BR>\n" );
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document.write( "y=(x^2+6x+41)/8 </SPAN>\n" );
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