document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=385902>Question 385902</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the focus of the given parabola x^2+4y-4=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #272910 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=272910\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%5E2%2B4y-4=0 ALIGN=MIDDLE  ALT=\"+x%5E2%2B4y-4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the same as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+=+-4%28y-1%29 ALIGN=MIDDLE  ALT=\"x%5E2+=+-4%28y-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  The standard form of the equation of the parabola of this type is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x+-+h%29%5E2+=+4p%28y-k%29 ALIGN=MIDDLE  ALT=\"%28x+-+h%29%5E2+=+4p%28y-k%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where p is the directed distance of the vertex from the focus.  Here p = -1.  Since the vertex is (0,1), the focus is (0,0). </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );