The roof top would be 0. At 12 seconds the ball is at -225.6, which would be the ground so the building would be 225.6 meters tall.
The highest positive value is 81.6, so this is the highest the ball goes up.
The value changes from a positive to a negative between 8 and 10, which means that would be around the time it is the same height as the building.
The answers would be:
The first and third choices
