A golf ball is hit off a tee toward the green. The height of the ball is modeled by the function h(t) = −16t2 + 96t, where t equals the time in seconds and h(t) represents the height of the ball at time t seconds. What is the axis of symmetry, and what does it represent?

t = 3; It takes the ball 3 seconds to reach the maximum height and 6 seconds to fall back to the ground.
t = 3; It takes the ball 3 seconds to reach the maximum height and 3 seconds to fall back to the ground.
t = 6; It takes the ball 6 seconds to reach the maximum height and 3 seconds to fall back to the ground.
t = 6; It takes the ball 6 seconds to reach the maximum height and 6 seconds to fall back to the ground.