document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=663267>Question 663267</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The seating capacity of a hockey arena is 18,000. With the ticket price set at $100, attendance at recent games has been 12,000. A market survey indicates that for every dollar the ticket price is lowered, the average attendance will increase by 130. \r<BR>\n" );
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document.write( "Write a quadratic formula to indicate this change. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #412695 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=412695\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The seating capacity of a hockey arena is 18,000. With the ticket price set at $100, attendance at recent games has been 12,000. A market survey indicates that for every dollar the ticket price is lowered, the average attendance will increase by 130. <BR>\n" );
document.write( "Write a quadratic formula to indicate this change.<BR>\n" );
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document.write( "let x=number of $1 reductions in ticket price<BR>\n" );
document.write( "100-x=reduced price<BR>\n" );
document.write( "130x=increase in attendance<BR>\n" );
document.write( "12000+130x=new attendance<BR>\n" );
document.write( "revenue=price*attendance<BR>\n" );
document.write( "revenue=(100-x)(12000+130x)<BR>\n" );
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