Please help! I will do anything.. I tried so hard yet I'm failing and crying! I'll give the crown to u and try giving 100 points! Just answer it simply thts it!

The linear model represents the height, f(x), of a water balloon thrown off the roof of a building over time, x, measured in seconds:


Part A: During what interval(s) of the domain is the water balloon's height increasing? (2 points)

Part B: During what interval(s) of the domain is the water balloon's height staying the same? (2 points)

Part C: During what interval(s) of the domain is the water balloon's height decreasing the fastest? Use complete sentences to support your answer. (3 points)

Part D: Use the constraints of the real-world situation to predict the height of the water balloon at 16 seconds. Use complete sentences to support your answer. (3 points)