document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=488918>Question 488918</A>: <I><SPAN STYLE=\"word-break: break-all;\"> N(x) = -0.4x^2 +8x + 12 IS the formula. What day will the ticket sales peak on? and how many tickets will be sold on that day. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #333486 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=333486\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> N(x) = -0.4x^2 +8x + 12 IS the formula. What day will the ticket sales peak on? and how many tickets will be sold on that day.<BR>\n" );
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document.write( "a = -0.4 ; b = 8 ; c = 12<BR>\n" );
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document.write( "Max tickets sales occurs when x = -b/(2a) = -8/(2*-0.4) = 10<BR>\n" );
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document.write( "Max ticket sales = N(10) = -0.4^10^2 + 8*10 +12<BR>\n" );
document.write( "= -40 + 80 + 12<BR>\n" );
document.write( "= 52<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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