Answer:
the value of hi changes from 58 to 0:
h(t) = -4.9t^2 +19.8t
Step-by-step explanation:
If the initial height changes, then the term in the equation that represents that height will change. The initial height term is hi, so it changes from 58 to 0.

7 is the answer. hope this helps!
8, 2 because A doesn't add anything.
Answer:
D. (4,3)
Step-by-step explanation:
I calculated it logically