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: у 80 60 Helght (In feet) 40 20 0 N 4 6 14 8 10 12 Time (in seconds) Part A: During what interval(s) of the domain is the water balloon's height increasing?I2 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)