The function h(t)= -2(t-3)^2+23 represents the height, in feet, t seconds after a volleyball is served. Which of the following statements are correct

1. The volleyball reached its maximum height at 3 seconds
2. The maximum height of the volleyball was 23 feet
3. If the volleyball is not returned by the opposing team it will hit the ground in 5.5 seconds
4. The graph that models the volleyballs height over time is exponential
5. The volleyball was served from a hight of 5 feet.