1.
If
g
(
x
) = |
x
+ 3|, find
g
(-7).
A.
-4
B.
-7
C.
10
D.
4
Hint
2.
Choose the graph of
f
(
x
) = |
x
| - 2.
A.
B.
C.
D.
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.
$4.66
C.
$4.80
D.
$4.60
Hint
4.
What is the slope of a constant function?
A.
0
B.
-1
C.
1
D.
c
, where
f
(
x
) =
c
Hint
5.
Suppose a plant grows one inch every year. If
x
is how old the plant is (in years), and
f
(
x
) is how tall the plant is (in inches), what type of function is
f
(
x
)?
A.
identity function
B.
absolute value function
C.
constant function
D.
step function
Hint