document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=42040>Question 42040</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do u calculate the focus if the vertex is not 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 #27256 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=27256\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For a parabola, the distance between the vertex and the focus \"p\" is related to the \"a\" in the general equation for a parabola<BR>\n" );
document.write( "y = a(x - h)^2 + k<BR>\n" );
document.write( "where a = 1/4p<BR>\n" );
document.write( "The \"a\" also tells you the orientation, so you know in which to go from the vertex to the focus...  </SPAN>\n" );
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