A fountain shoots water into the air. The graph shows a water droplet's height y in feet x seconds after it is shot from the fountain.

What does the x- intercept of 6 represent?

• It takes 6 s for a water droplet to rise and fall back to the ground

• A water droplet reaches its maximum height after 6 s

• The water fountain shoots water from a height of 6 ft.

• A water droplet reaches a maximum height of 6 ft.