document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=115172>Question 115172</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= -0.002x^2+1.4x-400.  Find the number of pretzels that must be sold to maximize profit. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #83928 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=83928\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the maximim for this function (a parabola) lies on the axis of symmetry (at the vertex)\r<BR>\n" );
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document.write( "the equation for the axis of symmetry is x=-b/2a\r<BR>\n" );
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document.write( "x=-1.4/(2*(-.002)) </SPAN>\n" );
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