1.
Given
f
(
x
) =
x
2
+ 1 and
g
(
x
) = 2
x
- 1, find (
f
-
g
)(
x
).
A.
x
2
+ 2
x
B.
x
2
- 2
x
+ 1
C.
x
2
- 2
x
+ 2
D.
x
2
- 2
x
- 1
Hint
2.
Given
f
(
x
) = 3
x
+ 2
x
- 2 and
g
(
x
) = 4
x
+ 1, find
A.
B.
3
x
2
+ 6
x
- 1
C.
3
x
2
- 2
x
- 3
D.
Hint
3.
Find
(
x
) if
f
(
x
) = 3
x
2
+ 1 and
g
(
x
) = 2
x
+ 3.
A.
12
x
2
- 36
x
+ 28
B.
12
x
2
+ 36
x
+ 28
C.
6
x
2
+ 5
D.
6
x
2
- 5
Hint
4.
State the domain of
(
x
) for
f
(
x
) =
and
g
(
x
) =
A.
B.
C.
D.
Hint
5.
Find the domain of
f
(
g
(
x
)) given
f
(
x
) =
, and
g(x)
=
x
-1
A.
x
1
B.
x
1,-1
C.
all real numbers
D.
x
0, 1, -1
Hint