Suppose a baseball is thrown at 82 miles per hour. The ball will travel 330 feet when hit by a bat swung at 46 miles per hour and will travel 485 feet when hit by a bat swung at 77 miles per hour. Let y be the number of feet traveled by the ball when hit by a bat swung at x miles per hour. How much farther will a ball travel for each mile-per-hour increase in the speed of the bat?