document.write( "Question 495764: I am having problems trying to figure this particular problem out.
\n" ); document.write( "Tickets=-0.2x^2+15x+219
\n" ); document.write( "

Algebra.Com's Answer #336204 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
I'm guessing that the problem is to find when is
\n" ); document.write( "most tickets are sold. This is because
\n" ); document.write( "the minus in front of the \"+x%5E2+\" term means
\n" ); document.write( "that the curve has a maximum and not a minimum.
\n" ); document.write( "The maximum occurs where
\n" ); document.write( "\"+x+=+-b%2F%282a%29+\"
\n" ); document.write( "\"+a+=+-.2+\"
\n" ); document.write( "\"+b+=+15+\"
\n" ); document.write( "\"-.2x%5E2+%2B+15x+%2B+219+\"
\n" ); document.write( "\"+-b%2F%282a%29+=+-15%2F%282%2A%28-.2%29%29+\"
\n" ); document.write( "\"+-b%2F%282a%29+=+37.5+\"
\n" ); document.write( "Put this value of \"x\" back into
\n" ); document.write( "the equation to find maximum ticket sales
\n" ); document.write( "\"-.2%2A37.5%5E2+%2B+15%2A37.5+%2B+219+\"
\n" ); document.write( "\"+-281.25+%2B+562.5+%2B+219+=+500.25+\"
\n" ); document.write( "This must get rounded off to 500
\n" ); document.write( "
\n" );