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1. 
A ball is kicked from the ground. It travels up through the air and comes back down. The function which models the height of the ball at any time, t, is h(t) = -16t^2 + 32t. How many seconds after it has left the ground does the ball hit the ground?
A.
0 seconds
B.
1 second
C.
2 seconds
D.
3 seconds
2. 
A ball is kicked from the ground. It travels up through the air and comes back down. The function which models the height of the ball at any time, t, is h(t) = -16t^2 + 32t. How many seconds after it has left the ground does the ball reach it's maximum height?
A.
0 seconds
B.
1 second
C.
2 seconds
D.
3 seconds
3. 
A ball is kicked from the ground. It travels up through the air and comes back down. The function which models the height of the ball at any time, t, is h(t) = -16t^2 + 32t. What is the maximum height reached by the ball?
A.
32 ft
B.
16 ft
C.
48 ft
D.
2 ft
4. 
A ball is kicked from the ground. It travels up through the air and comes back down. The function which models the height of the ball at any time, t, is h(t) = -16t^2 + 32t. How high is the ball after 0.5 seconds?
A.
12 ft
B.
16 ft
C.
48 ft
D.
32 ft