1.
Simplify the expression 2
a
+ 7
b
+ 12
a
+ 3
b
and then evaluate if
a
= 2 and
b
= -2.
A.
9
a
+ 15
b
; -12
B.
14
a
+ 10
b
; 8
C.
10
a
+ 14
b
; -8
D.
14
a
+ 8
b
; 12
Hint
2.
What is (2
p
2
+ 6
pq
-
q
2
) decreased by (3
p
2
+ 2
pq
+ 3
q
2
)?
A.
p
2
- 4
pq
+ 4
q
2
B.
-
p
2
- 4
pq
- 4
q
2
C.
-
p
2
+ 4
pq
- 4
q
2
D.
-
p
2
- 4
pq
+ 4
q
2
Hint
3.
What is the value of
y
in the equation
if
x
= -5?
A.
8
B.
-2
C.
3
D.
17
Hint
4.
Simplify
x
2
+ 5
x
+ 2 + (-4
x
) + 3
x
+ (-5) + 3.
A.
x
2
+ 4
x
+ 1
B.
x
2
+ 4
x
+ -3
C.
x
2
+ (-
x
)
D.
x
2
+ 4
x
Hint
5.
Find (-6
x
2
+ 2) + (2
x
2
– 4).
A.
-8
x
2
– 6
B.
-4
x
2
+ 2
C.
4
x
2
– 2
D.
-4
x
2
– 2
Hint
6.
Find 3
x
– 6 + (-2
x
) + 10 and evaluate if
x
= -5.
A.
-6
B.
-1
C.
9
D.
-21
Hint
7.
Find
x
5
(
x
4
+ 6
x
3
).
A.
x
20
+ 6
x
3
B.
x
20
+ 6
x
15
C.
x
9
+ 6
x
8
D.
x
9
+ 6
x
3
Hint
8.
Which graph represents a nonlinear function?
A.
B.
C.
D.
Hint
9.
Which equation represents a linear function?
A.
y
= -2
x
- 6
B.
y
= -2
x
2
- 6
C.
y
= -2
x
6
D.
y
= -
Hint
10.
Find the graph of
y
= 2
x
2
.
A.
B.
C.
D.
Hint
11.
If the perimeter of the triangle is (5
x
+ 2) feet, find the measure of the third side.
A.
(6
x
+ 1) ft
B.
(2
x
+ 1) ft
C.
(6
x
+ 3) ft
D.
(2
x
+ 3) ft
Hint
12.
Find 9
3
· 9
7
.
A.
81
10
B.
9
10
C.
81
21
D.
9
21
Hint
13.
Venus is approximately 10
7
miles from Earth. Pluto is approximately 10
9
miles from Earth. About how many times farther away from Earth is Pluto than Venus?
A.
10
3
, or 1,000 times
B.
10
1
, or 10 times
C.
10
2
, or 100 times
D.
10
4
, or 10,000 times
Hint
14.
Find 5
x
(2
x
2
- 6
x
+ 12).
A.
10
x
3
- 30
x
+ 60
B.
10
x
3
- 30
x
2
- 60
x
C.
10
x
3
- 30
x
2
+ 60
x
D.
10
x
2
- 30
x
+ 60
Hint