A baseball team plays in a stadium that holds \( 48000 \) spectators. With the ticket price at \( \$ 11 \) the average attendance has been \( 19000 \) . When the price dropped to \( \$ 8 \) , the average attendance rose \( 24000 \) . Assume that attendance is linearly related to ticket price.
What ticket price would maximize revenue? \( \$\) ____