Question

help

Answer 1

A football is kicked toward the goal. The height of the ball is modeled by the function h(t) = -16t^2 + 64t 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 = 2; it takes 2 seconds to reach the maximum height and 2 seconds to fall back to the ground

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

t = 4; it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground

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

Answer 2

@Greenberry101 @bianca2691

Answer 3

\[h(t)=-16t^2+64t=-16(t-2)^2+64\]
This means that the axis of symmetry is at x=2, and the ball is thrown at a height of 64 ft.with an initial velocity upwards of 64 ft/s

Answer 4

For the time to fall back to the ground, solve for h(t)=0, which is t=0 or t=4.
Also, the maximum height is 64 ft (not thrown at 64 ft above ground).

Answer 5

so c

Answer 6

@math-geek

Answer 7

@precal @penton572 @NB_12

Answer 8

Hope this is more clear.

Answer 9

@maggie/tiffanie it is nto that hard
come back to your question adn we can do it