1.
If
f
(
x
) = [2
x
- 1], find
f
(5.4).
A.
9.8
B.
9
C.
8
D.
10
Hint
2.
Identify
h
(
x
) = [
x
] + 4.
A.
constant function
B.
greatest integer function
C.
direct variation function
D.
absolute value function
Hint
3.
Which equation describes graph A?
A.
y
= 2.25|
x
| - 1
B.
y
= | 2.25
x
|
C.
y
= |
x
- 1 |
D.
y
= 2.25
x
- 1
Hint
4.
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.
$4.66
B.
$4.65
C.
$4.60
D.
$4.80
Hint
5.
If
find
f
(-9).
A.
1
B.
5
C.
-1
D.
-5
Hint