The height , in meters, of a ball thrown upwards is modeled by the function , where is the time in seconds after the ball is thrown. Which of the following statements is true about the ball's motion?
The ball was thrown from an initial height of 19.6 meters.
The ball reached its maximum height 2 seconds after being thrown.
The maximum height reached by the ball was 2 meters.
The ball returned to its initial height after 4.9 seconds.