An ideal projectile starts and lands at the same hieght on the ground.

1) does the projectile spend more time in flight above or below 1/2 of its maximum height?

2) solve for fraction of time spent above 1/2 maximum height.

3) prove that y position is symmetric about maximum height.

i know the answer for the first one is above 1/2 its maximum height but need with 2) and 3) .