document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=539898>Question 539898</A>: <I><SPAN STYLE=\"word-break: break-all;\">  <BR>\n" );
document.write( "Focus at (0,1); 4/3 is One-Half the Length of Minor Axis.<BR>\n" );
document.write( "Write equation of the ellipse that has center at the Origin. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #354218 by </B><A HREF=/tutors/aboutme.mpl?userid=acolunga3><B>acolunga3(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=acolunga3><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/cgi-bin/show-face.mpl?user=acolunga3><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=354218\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I worked with some friends: \r<BR>\n" );
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document.write( "Origin: Center: (0,0)<BR>\n" );
document.write( "        Focus:   0,1<BR>\n" );
document.write( "        4/3 is 1/2 length of Minor Axis SO 4/3 * 1/2 = 16/9<BR>\n" );
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document.write( "  first mark: 0,0 as h,k<BR>\n" );
document.write( "          c^2 = a^2 / a^2    -    b^2 / b^2    =1\r<BR>\n" );
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document.write( "  <BR>\n" );
document.write( "C^2 = A^2 - B^2<BR>\n" );
document.write( "1^2 = a^2 - 4/3 ^2  =>  1=a^2 - 16/9 so \r<BR>\n" );
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document.write( "1 + 16/9 =a^2 => 9/9 + 16/9 => a^2 =25/9\r<BR>\n" );
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document.write( "x^2 /  16/9 b^2      +    y^2    /     25/9 a^2   =1       now multiply 9th fraction to top and bottom of the fraction to get<BR>\n" );
document.write( " 9x^2/16   +  9y^2/25  =1   as the answer<BR>\n" );
document.write( " </SPAN>\n" );
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