2. A toddler kicks a ball a distance of 15 feet. The maximum height of the ball above the ground is 4 feet. If the point at which the child kicks the ball is the origin and the flight of the ball can be approximated by a parabola, find an expression for the quadratic function that models the ball's path. 3. The temperature f(x), in degrees Fahrenheit, during the day can be modeled by the equation f(x) = -0.7x + 9.4x +59.3, where x is the number of hours after 6:00 AM. At what time is the temperature a maximum? (Round to the nearest minute.) And what is the maximum temperature? (Round to the nearest tenth of a degree.)