1.
Which graph represents a function?
A.
B.
C.
D.
Hint
2.
If
h
(
z
) = 2
z
2
- 5
z
+ 7, find
h
(3
c
).
A.
9
c
2
- 15
c
+ 7
B.
18
c
2
- 3
c
+ 7
C.
18
c
2
- 15
c
+ 7
D.
c
+ 7
Hint
3.
Find
if
f
(
x
) = -12
x
+
A.
0
B.
1
C.
-8
D.
-9
Hint
4.
Find
f
(
x
– 7) if
f
(
x
) = -4
x
– 10.
A.
-4
x
+ 18
B.
4
x
+ 3
C.
4
x
– 38
D.
-4
x
– 17
Hint
5.
Find
h
(-2.5) if
h
(
z
) =
z
² + 3.5
z
– 2.75.
A.
-17.75
B.
0.25
C.
12.25
D.
-5.25
Hint