document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1035335>Question 1035335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Findax/min point for the following function:<BR>\n" );
document.write( "f (x,y) = -x^2-y^2 + 6x + 8y - 21 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #649977 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=649977\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find max/min point for the following function:<BR>\n" );
document.write( "f (x,y) = -x^2-y^2 + 6x + 8y - 21<BR>\n" );
document.write( "Complete the square on the x and on the y terms::<BR>\n" );
document.write( "-[x^-6x+9]-[y^2-8y+16] = 21-9-16 = -4<BR>\n" );
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document.write( "(x-3)^2/4 + (y-4)^2/4 = 1<BR>\n" );
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document.write( "Circle with center at (3,4) and radius = 2<BR>\n" );
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document.write( "Max point (3,4+2) = (3,6)<BR>\n" );
document.write( "Min point (3,4-2) = (3,2)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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