1.
Find the domain of the function.
A.
all real numbers except –1
B.
all real numbers except 0
C.
all real numbers
D.
all real numbers except 1
Hint
2.
A flare is shot up into the sky modeling the formula
h
(
t
) = 2 + 144
t
– 16
t
2
, where h is in feet and t is in seconds. About how long was the flare in the air?
A.
9 seconds
B.
2.5 seconds
C.
5 seconds
D.
4.5 seconds
Hint
3.
Find the range of a parabola if the vertex is (–5, 3) and the parabola opens upward.
A.
range:
f
(
x
)
–5
B.
range:
f
(
x
)
–5
C.
range:
f
(
x
)
3
D.
range:
f
(
x
)
3
Hint
4.
Find the
x
-intercepts of the graph of f(
x
) = –
x
2
+ 4
x
+ 12.
A.
–2, 16
B.
–2, 6
C.
2, 16
D.
–2, –6
Hint