Afootball is kicked toward the goal. the height of the ball is modeled by the function h(x) = -16t^2 + 64t where t equals the time in seconds and h(x) represents the height of the ball at time t seconds. what is the axis of symmetry and what does it represent?

a. x = 2; it takes 2 seconds to reach the maximum height and 2 seconds to fall back to the ground

b. x = 2; it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground

c. x = 4; it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground

d. x = 4; it takes 4 seconds to reach the maximum height and 8 seconds to fall back to the ground