document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1120630>Question 1120630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Philip wants to construct a dog pen at the back of his garage. He will use the wall of the garage as one side of the pen and will construct the rest of the rectangular pen from 28 yards of fencing. What should the dimensions of the pen be if Philip wants it to have maximum area.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #736289 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=736289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Draw this <BR>\n" );
document.write( "The width of the fence is x <BR>\n" );
document.write( "There are two widths for 2x<BR>\n" );
document.write( "The rest, 28-x is the length of one side<BR>\n" );
document.write( "A=x(28-x)=-x^2+28x<BR>\n" );
document.write( "From calculus or vertex = -b/2a, the x value is -28/-2=14<BR>\n" );
document.write( "x is 14<BR>\n" );
document.write( "2x=28<BR>\n" );
document.write( "Max area is 392 yds^2. </SPAN>\n" );
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