document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=768365>Question 768365</A>: <I><SPAN STYLE=\"word-break: break-all;\">      <BR>\n" );
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document.write( "Identify the vertex, focus, and directrix of the graph\r<BR>\n" );
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document.write( "y=1/20(x-3)^2-3\r<BR>\n" );
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document.write( "Is the following correct:\r<BR>\n" );
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document.write( "Vertex (3,-3)<BR>\n" );
document.write( "Focus (3,2)<BR>\n" );
document.write( "Directix = -8<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #468280 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=468280\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Identify the vertex, focus, and directrix of the graph<BR>\n" );
document.write( "y=1/20(x-3)^2-3<BR>\n" );
document.write( "(y+3)=(x-3)^2/20<BR>\n" );
document.write( "(x-3)^2=20(y+3)<BR>\n" );
document.write( "This is an equation of a parabola that opens upward.<BR>\n" );
document.write( "Its basic form: (x-h)^2=4p(y-k), (h.k)=(x,y) coordinates of the vertex<BR>\n" );
document.write( "For given parabola:<BR>\n" );
document.write( "vertex: (3,-3)<BR>\n" );
document.write( "axis of symmetry: x=3<BR>\n" );
document.write( "4p=20<BR>\n" );
document.write( "p=5<BR>\n" );
document.write( "focus: (3,2) (p-units above vertex on the axis of symmetry)<BR>\n" );
document.write( "directrix: y=-8 (p-units below vertex on the axis of symmetry)<BR>\n" );
document.write( "congratulations! you got all the answers correct </SPAN>\n" );
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