Answer:
K
Step-by-step explanation:
Let's look at the equation.
[tex]h=-at^{2}+bt+c[/tex]
This is a standard negative polynomial equation.
So changing the c value will basically move the graph up/down.
[tex]I[/tex] is true because if it moved up or down, the h-intercept would change.
[tex]II[/tex] is true because if it moved up or down, the maximum would change.
[tex]III[/tex] is true because if it moved up or down, the t-intercept would be moved left or right.
