document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=815551>Question 815551</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the vertices and foci of the ellipse.\r<BR>\n" );
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document.write( "x2/9 + y2/4=1\r<BR>\n" );
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document.write( "vertices    	<BR>\n" );
document.write( "(x, y) = \r<BR>\n" );
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document.write( "   \r<BR>\n" );
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document.write( "(smaller x-value)<BR>\n" );
document.write( "(x, y) = \r<BR>\n" );
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document.write( "   \r<BR>\n" );
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document.write( "(larger x-value)<BR>\n" );
document.write( "foci    	<BR>\n" );
document.write( "(x, y) = \r<BR>\n" );
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document.write( "   \r<BR>\n" );
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document.write( "(smaller x-value)<BR>\n" );
document.write( "(x, y) = \r<BR>\n" );
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document.write( "   \r<BR>\n" );
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document.write( "(larger x-value)\r<BR>\n" );
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document.write( "Sketch its graph, showing the foci.<BR>\n" );
document.write( "WebAssign Plot	WebAssign Plot<BR>\n" );
document.write( "WebAssign Plot	WebAssign Plot <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 #491054 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=491054\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the vertices and foci of the ellipse.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2F9+%2B+y%5E2%2F4=1 ALIGN=MIDDLE  ALT=\"x%5E2%2F9+%2B+y%5E2%2F4=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >  C(0,0)<BR>\n" );
document.write( "V(-3,0)& V(3,0) and F(-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%285%29 ALIGN=MIDDLE  ALT=\"sqrt%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >,0)  & F(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%285%29 ALIGN=MIDDLE  ALT=\"sqrt%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ,0)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%289-4%29 ALIGN=MIDDLE  ALT=\"sqrt%289-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%285%29 ALIGN=MIDDLE  ALT=\"sqrt%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " Standard Form of an Equation of an Ellipse is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-h%29%5E2%2Fa%5E2+%2B+%28y-k%29%5E2%2Fb%5E2+=+1+ ALIGN=MIDDLE  ALT=\"%28x-h%29%5E2%2Fa%5E2+%2B+%28y-k%29%5E2%2Fb%5E2+=+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "where Pt(h,k) is the center. (a variable positioned to correspond with major axis)<BR>\n" );
document.write( " a and b  are the respective vertices distances from center<BR>\n" );
document.write( " and ±<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28a%5E2-b%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28a%5E2-b%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >are the foci distances from center: a > b\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C+++-6%2C+6%2C+-6%2C+6%2C+++arc%280%2C0%2C6%2C4%29%2Cgrid%281%29%2C%0D%0Acircle%28-3%2C+0%2C0.3%29%2C%0D%0Acircle%283%2C+0%2C0.3%29%2C%0D%0Acircle%28-sqrt%285%29%2C+0%2C0.3%29%2C%0D%0Acircle%28sqrt%285%29%2C+0%2C0.3%29%2C%0D%0Agraph%28+300%2C+300%2C+-6%2C+6%2C+-6%2C+6%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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