When a ball is thrown up into the air, the function h(t) = −16t2 + 72t  gives the height h in feet of the ball t seconds after it has been thrown. What does h(9) represent? (1 point)

Responses

The height of the ball 9 seconds after it has been thrown. 
The height of the ball 9 seconds after it has been thrown. 

9 seconds
9 seconds

The time it takes the ball to reach its maximum point is 9 seconds. 
The time it takes the ball to reach its maximum point is 9 seconds. 

The ball took 9 seconds to hit the ground. 

1 answer

The height of the ball 9 seconds after it has been thrown.