ball is thrown upward from the top of a 96-foot-tall building. The function f gives the height of the
ball, f(x), after x seconds. The graph of y = f(x) is shown on the grid.
Height of Ball
Height （ft）
140
120
100
80
60
40
20
0
(1.25, 121)
(0, 96)
4, 0)
1 2 3
4
5
Time (sec)
x
What is the domain of f for this situation?
A All real numbers greater than or equal to 0 and less than or equal to 4
® All real numbers greater than or equal to 0 and less than or equal to 121
© All real numbers greater than or equal to 1.25 and less than or equal to 4
® All real numbers greater than or equal to 96 and less than or equal to 121