1.
Which is the graph of
f
(
x
) = |
x
| - 4 and its inverse?
A.
B.
C.
D.
Hint
2.
Which is the graph of
f
(
x
) =
x
2
- 3 and its inverse?
A.
B.
C.
D.
Hint
3.
Suppose
I
= 0.05(0.6
G
- 400), where
G
= the gross monthly pay and
I
= the amount of the investment. Determine the equation which represents the inverse process.
A.
G
=
B.
G
=
C.
G
=
D.
G
=
Hint
4.
Given the function
f
(
x
) =
, find the inverse.
A.
f
-1
(
x
) = 4
B.
f
-1
(
x
) =
C.
f
-1
(
x
) = 1
D.
f
-1
(
x
) =
x
- 4
Hint
5.
Given the function
f
(
x
) =
x
2
- 8
x
+ 16, is the inverse a function? How do you know?
A.
No, fails the horizontal line test.
B.
No, fails the vertical line test.
C.
Yes, fails the horizontal line test.
D.
Yes, passes the vertical line test.
Hint