document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=476857>Question 476857</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The revenue from selling x units of a product is given by<BR>\n" );
document.write( "    y = -0.0002x^2 + 20x. How many units must be sold in<BR>\n" );
document.write( "    order to have the greatest revenue? (Find the x-coordinate<BR>\n" );
document.write( "    of the vertex of the parabola.)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #326940 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=326940\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The revenue from selling x units of a product is given by<BR>\n" );
document.write( "y = -0.0002x^2 + 20x. How many units must be sold in<BR>\n" );
document.write( "order to have the greatest revenue? (Find the x-coordinate<BR>\n" );
document.write( "of the vertex of the parabola.)\r<BR>\n" );
document.write( "\n" );
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document.write( "maximum revenue occurs when x = -b/(2a) = -20/(2*-0.0002) = 50,000<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );