Answer:
The last one decreasing on the interval (-infinity, 0) where it becomes constant
Step-by-step explanation:
-4x + 28 = 36
28 = 36 + 4x / - 36
-8 = 4x
-2 = x
For question 11, you essentially need to find when h(t) = 0, since that is when the height of the ball reaches 0 (ie touches the ground).
For question 12, it is asking for a maximum height, so you need to find when dh/dt = 0 and taking the second derivative to prove that there is maximum at t. That will find you the time at which the ball will hit a maximum height.
Rinse and repeat question 12 for question 13
