document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855612>Question 855612</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the equation of a parabola with a vertex at (0, 0) and a directrix y = -1.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515454 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=515454\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write the equation of a parabola with a vertex at (0, 0) and a directrix y = -1.<BR>\n" );
document.write( "parabola opens up<BR>\n" );
document.write( "basic form of equation: x^2=4py<BR>\n" );
document.write( "axis of symmetry: x=0 or y-axis<BR>\n" );
document.write( "p=1 (distance from vertex to directrix on the axis of symmetry)-----<BR>\n" );
document.write( "4p=4<BR>\n" );
document.write( "equation of given parabola: x^2=4y     </SPAN>\n" );
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