The interval for the increasing height is [0-3] seconds
Step-by-step explanation:
According to the graph the rock is thrown from a 52 foot cliff, in a time considered 0. Depending the thrown force and the gravity intervation the rock its going to ascend and later for the gravity force its going to descend to the ground.
The graph shows the trajectory of the rock and we can observe that the ascending period of the rock its in the moment of the throw (0) and the maximun height the rock reach is in the second 3 where the height is 180 feet.
Direct proportionality is the type of proportionality where an increase in one quantity or variable causes a corresponding increase in another quantity. Therefore; y varies directly as x Hence; y α x y =k x where k is a constant if y= 28 and x = 7 , then k = 28/4 =4 hence, y = 4 k when x = 4, then y= 16
