Question

Please help!!!!

Answer 1

Answer:

B) The rock reaches a maximum height of 43 m.

E) The rock is in the air for 4 s.

Step-by-step explanation:

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Answer 2

The rock reaches a maximum height of 43 m:
 For this case, when observing the graph we see that for the time t = 1 the rock reaches its maximum height.
 The maximum height of the rock is 43 meters.

 The rock is in the air for 4 s:
 What you should observe is the domain of the function.
 The domain is the values of the horizontal axis.
 The domain is [0, 4]
 Therefore, the height is 0 when the time is t = 4.