document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=981170>Question 981170</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The function below can be used to model the area of a rectangle in square inches, A, if the<BR>\n" );
document.write( "rectangle has a perimeter of 72 inches and a width of W inches.\r<BR>\n" );
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document.write( "A= 36w- w^2\r<BR>\n" );
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document.write( "please describe the domain of the function:\r<BR>\n" );
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document.write( "0 < N < ?what number  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #602193 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=602193\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two things to deal with:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-w%5E2%2B36w%3E0 ALIGN=MIDDLE  ALT=\"-w%5E2%2B36w%3E0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2L%2B2w=72 ALIGN=MIDDLE  ALT=\"2L%2B2w=72\"   DISABLED_style= \"max-width:90%; height:auto;\" >. \r<BR>\n" );
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document.write( "Also knowing that w is width, you can find length information.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=w%28-w%2B36%29 ALIGN=MIDDLE  ALT=\"A=w%28-w%2B36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "This means, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L=36-w ALIGN=MIDDLE  ALT=\"L=36-w\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Only positive values for L and w are allowed, so this means at least, that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%3C36 ALIGN=MIDDLE  ALT=\"w%3C36\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "The roots for area <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=-w%5E2%2B36=-w%28w-36%29 ALIGN=MIDDLE  ALT=\"A=-w%5E2%2B36=-w%28w-36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  are 0 and 36; and A is a parabola which has a maximum and opens downward.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%280%3Cw%3C36%29 ALIGN=MIDDLE  ALT=\"highlight%280%3Cw%3C36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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