1.
Simplify the polynomial 4
a
2
+
a
2
.
A.
5
a
2
B.
6
a
2
C.
4
a
2
D.
4
a
2
+
a
Hint
2.
Add 3
x
2
+ 2
x
- 1 and
x
2
- 3
x
+ 5.
A.
4
x
2
+ 5
x
- 4
B.
4
x
2
-
x
+ 4
C.
2
x
2
+ 5
x
+ 4
D.
2
x
2
- 5
x
- 6
Hint
3.
What is the value of (
p
2
- 7
p
) + (3
p
2
+ 2
p
) if
p
= 4?
A.
-64
B.
84
C.
44
D.
96
Hint
4.
Find (6
r
+ 3
s
) - (2
r
-
s
). Then evaluate the difference if
r
= 2 and
s
= -1.
A.
4
B.
0
C.
-4
D.
5
Hint
5.
The flight of a baseball thrown by a player is modeled by the equation
h
= -16
t
2 + 50
t
+ 6, where
h
is the height in feet and
t
is the time in seconds after the ball is thrown. How high is the ball 2.5 seconds after it is thrown?
A.
37.5 feet
B.
45 feet
C.
42 feet
D.
31 feet
Hint
6.
Write a polynomial for the model.
A.
-4
x
2
– 6
x
– 4
B.
4
x
2
+ 6
x
+ 4
C.
-4
x
2
+ 6
x
+ 4
D.
-4
x
2
+ 4
Hint
7.
Find
x
5
(
x
4
+ 6
x
3
).
A.
x
9
+ 6
x
8
B.
x
20
+ 6
x
3
C.
x
9
+ 6
x
3
D.
x
20
+ 6
x
15
Hint
8.
Which graph represents a nonlinear function?
A.
B.
C.
D.
Hint
9.
Which equation represents a nonlinear function?
A.
y
= 5
x
2
+ 1
B.
y
= 5
x
+ 1
C.
y
= 5
x
D.
y
= 5
Hint
10.
Find the graph of
y
= -5
x
2
+ 3.
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 (-
a
)(-5
a
7
).
A.
5
a
7
B.
-5
a
8
C.
5
a
8
D.
-5
a
7
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
4
, or 10,000 times
B.
10
1
, or 10 times
C.
10
3
, or 1,000 times
D.
10
2
, or 100 times
Hint
14.
Find -9
q
(6
q
- 2).
A.
-54
q
2
- 18
q
B.
-54
q
2
+ 18
q
C.
-54
q
2
+ 11
q
D.
-54
q
+ 18
Hint