document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=447364>Question 447364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Identify the focus and directrix of the parabol: \r<BR>\n" );
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document.write( "1.) 3x^2= -y </SPAN>\n" );
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document.write( "1.) 3x^2= -y<BR>\n" );
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document.write( "3x^2= -y<BR>\n" );
document.write( "x^2=-y/3<BR>\n" );
document.write( "This is of the standard form: x^2=-4py<BR>\n" );
document.write( "for given equation<BR>\n" );
document.write( "4p=1/3<BR>\n" );
document.write( "p=1/12<BR>\n" );
document.write( "Given equation is a parabola that opens downward with axis of symmetry, x=0, and vertex at (0,0)<BR>\n" );
document.write( "The directrix is a line, y=1/12<BR>\n" );
document.write( "The focus is at (0,-1/12) </SPAN>\n" );
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