document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=893189>Question 893189</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the equation of a parabola with a vertex at (0, 0) and a focus at (-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 #542181 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=542181\">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 focus at (-4, 0).<BR>\n" );
document.write( "This is an equation of a parabola that opens leftward with vertex at the origin.<BR>\n" );
document.write( "Its basic equation: y^2=-4px<BR>\n" );
document.write( "axis of symmetry: y=0 or x-axis<BR>\n" );
document.write( "p=4 (distance from vertex to focus on the axis of symmetry)<BR>\n" );
document.write( "4p=16<BR>\n" );
document.write( "equation: y^2=-16x </SPAN>\n" );
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