document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=975091>Question 975091</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The daily production costs C( in dollars per unit) for a manufacturer of lighting fixtures, are given by the quadratic function c(x) =800-10x+0.25x 2 where x is the number of units produced. How many fixtures should be produced to yield a minimum cost per unit? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596907 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=596907\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> c(x) =800-10x+0.25x 2\r<BR>\n" );
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document.write( "vertex x value is -b/2a, and that is 10/0.5 or 20.\r<BR>\n" );
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document.write( "x=20, y = 800-200+100=700.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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