document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=90614>Question 90614</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A manufacturer has determined that the revenue received from selling x items of a product is given by R(x) = -0.3x2 + 200x and the cost to produce x items of the product is given by C(x) = 80x + 9400. Assuming that all of the products produced can be sold, how many should be produced to maximize the profit? (Hint: profit = revenue - cost) \r<BR>\n" );
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document.write( "I have such a hard time with word problems.  I reall appreciate the help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #65780 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=65780\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let P(x) equal profit ... P(x)=R(x)-C(x) ... P(x)=-0.3x^2+200x-(80x+9400) ... P(x)=-0.3x^2+120x-9400\r<BR>\n" );
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document.write( "the maximum lies on the axis of symmetry of the graph and is defined by x=-b/2a\r<BR>\n" );
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document.write( "in this case, x=-120/(2(-0.3)) ... x=200 </SPAN>\n" );
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