1.
Which graph represents a function?
A.
B.
C.
D.
Hint
2.
If
f
(
n
) = -6
n
+ 2, find
f
.
A.
8
B.
9
C.
-3
D.
4
Hint
3.
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
4.
Approximate the solution to
x
3
– 4
x
– 1 =
x
+ 4.
A.
x
= 2.6
B.
x
= 0
C.
x
= 1.3
D.
x
= 5.2
Hint