1.
If
f
(
x
) = [2
x
- 1], find
f
(5.4).
A.
10
B.
9
C.
9.8
D.
8
Hint
2.
Which equation describes graph A?
A.
y
= |
x
- 1 |
B.
y
= 2.25
x
- 1
C.
y
= 2.25|
x
| - 1
D.
y
= | 2.25
x
|
Hint
3.
A cellular telephone company charges $0.20 per minute or fraction thereof. If Miguel, a customer of this company, talks on his cell phone for 23.27 minutes, what will his charges be for that phone call?
A.
$4.65
B.
$4.80
C.
$4.60
D.
$4.66
Hint
4.
What is the slope of a constant function?
A.
0
B.
1
C.
-1
D.
c
, where
f
(
x
) =
c
Hint
5.
What type of function is shown in the graph?
A.
constant function
B.
piecewise function
C.
absolute value function
D.
step function
Hint