1.
Find the value of 5 + 2
2
- 8 + 3.
A.
-2
B.
4
C.
2
D.
-4
Hint
2.
The values in the graph below are _______
A.
integers.
B.
rational numbers.
C.
irrational numbers.
D.
natural numbers.
Hint
3.
Name the property illustrated by (3
c
· 6)2 = 3
c
(6 · 2).
A.
associative property of addition
B.
commutative property of addition
C.
associative property of multiplication
D.
commutative property of multiplication
Hint
4.
Solve 18 +
a
= 36.
A.
18
B.
-2
C.
54
D.
-18
Hint
5.
The formula for the area of a trapezoid is
Solve the formula for
h
.
A.
B.
C.
D.
Hint
6.
Solve 3 < 2
t
- 1 < 15.
A.
{
t
| 2 <
t
< 16}
B.
{
t
| 4 <
t
< 16}
C.
{
t
| 2 <
t
< 8}
D.
{
t
| 3 <
t
< 8}
Hint
7.
Graph the solution set of |3
y
+ 9| > 12.
A.
B.
C.
D.
Hint
8.
State an absolute value inequality for ''all numbers less than or equal to 8, and greater than or equal to -8.''
A.
B.
C.
D.
Hint
9.
In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true?
A.
The relation is a function because for each
x
value, there is exactly one
y
value.
B.
The relation is a function because the range values increase.
C.
The relation is not a function because only a line can be a function.
D.
The relation is not a function because there are two
y
values for some
x
values.
Hint
10.
The temperature
f
(
x
) of water in a lake in degrees Fahrenheit is estimated by the function shown below, where
x
is the depth in feet of the water. What would be the temperature of water 30 feet below the surface?
A.
33°F
B.
71.25°F
C.
63°F
D.
111°F
Hint
11.
Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is
A.
B.
C.
D.
Hint
12.
A best-fit line is drawn on a scatter plot showing the average daily temperature and the number of people at a public swimming pool. The slope of the line would probably be ________
A.
positive.
B.
undefined.
C.
negative.
D.
zero.
Hint
13.
Choose the graph of
f
(
x
) = |
x
| - 2.
A.
B.
C.
D.
Hint
14.
Write an inequality to describe all the points on the coordinate plane
above
y
= -4.
A.
y
> -4
B.
y
> 4
C.
y
< -4
D.
y
< 4
Hint
15.
Evaluate
z
– (2
yz
+
y
) ·
y
if
y
= -3 and
z
= 2.
A.
23
B.
9
C.
47
D.
-43
Hint
16.
Solve the equation | 3
a
+ 2 | - 2 = 4
a
+ 1.
A.
B.
-1
C.
D.
Hint
17.
Solve the inequality |
f
| > 4.
A.
{
f
| -4 <
f
< 4}
B.
{
f
| -4 >
f
> 4}
C.
{
f
|
f
> -4 or
f
< 4}
D.
{
f
|
f
< -4 or
f
> 4}
Hint
18.
Graph the line through (2, 3) that is perpendicular to the line with equation 2
x
+ 5
y
= 1.
A.
B.
C.
D.
Hint
19.
A scatter plot is __________.
A.
a line graphed in a portion of Quadrant I of the coordinate plane
B.
a set of data graphed as ordered pairs in a coordinate plane
C.
a line graph
D.
a table of data
Hint
20.
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.
absolute value function
B.
step function
C.
constant function
D.
identity function
Hint