document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=636912>Question 636912</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find vertex and focus of parabola \r<BR>\n" );
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document.write( "4y = x squared - 12x + 52\r<BR>\n" );
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document.write( "How do you do this one? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #401283 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=401283\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find vertex and focus of parabola <BR>\n" );
document.write( "4y = x squared - 12x + 52 <BR>\n" );
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document.write( "Complete the square:<BR>\n" );
document.write( "4y = x^2-12x+36 + 16<BR>\n" );
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document.write( "y = (1/4)(x-6)^2 + 4<BR>\n" );
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document.write( "Vertex: (6,4)<BR>\n" );
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document.write( "To find the focus:<BR>\n" );
document.write( "4p = 1/4<BR>\n" );
document.write( "p = 1/16<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Focus is 1/16 above the vertex:<BR>\n" );
document.write( "Focus: (6 , 4+(1/16)) or (6,67/16)<BR>\n" );
document.write( "=========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================= </SPAN>\n" );
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