Sec 3.2 1) When soft drinks are sold for $1.00 per bottle at football games, approximately 6000 bottles are sold. When the price is raised to $1.20 per bottle, the quantity demanded drops to 5600. The initial cost is $5000 and the cost per unit is $0.50. Assuming that the demand function is linear, what number of bottles and what price per bottle will yield a maximum profit? ( P - P . ) = M ( x - x . ) P