1.
Find the sum (7
a
2
-4) + (-2
a
2
+
a
+ 1).
A.
-9
a
2
+
a
- 5
B.
-5
a
2
-
a
+ 5
C.
5
a
2
+
a
- 3
D.
9
a
2
+
a
- 5
Hint
2.
Find the sum (-2
x
2
+ 3
xy
-3
y
2
) + (2
x
2
- 5
xy
).
A.
-4
x
2
+ 2
xy
- 3
y
2
B.
-8
xy
- 3
y
2
C.
-4
x
2
- 2
xy
- 3
y
2
D.
-2
xy
- 3
y
2
Hint
3.
Find the difference
(4 - 7
n
2
) - (-
n
+ 2
n
2
- 1).
A.
-9
n
2
+
n
+ 3
B.
-9
n
2
+
n
+ 5
C.
-5
n
2
-
n
+ 3
D.
-5
n
2
-
n
+ 5
Hint
4.
Multiply
x
3
(
x
4
- 2).
A.
x
12
- 2
B.
x
7
- 2
x
3
C.
x
12
- 2
x
3
D.
x
7
- 2
Hint
5.
Find the product (9
x
3
+ 5)(2
x
2
).
A.
18
x
5
+ 10
x
2
B.
9
x
5
+ 10
x
2
C.
9
x
3
+ 10
x
2
D.
18
x
6
+ 10
x
2
Hint
6.
Find the degree of 7
x
2
y
2
z
.
A.
4
B.
7
C.
6
D.
5
Hint
7.
Find the degree of the polynomial
.
A.
5
B.
6
C.
7
D.
4
Hint
8.
Find the difference (10
x
+ 8) – (5
x
+ 4).
A.
5
x
+ 4
B.
15
x
+ 4
C.
5
x
+ 12
D.
15
x
+ 12
Hint
9.
Determine whether the graph represents a linear or nonlinear function. Explain.
A.
linear, the graph is a straight line
B.
nonlinear, the graph is a cubic function
C.
nonlinear, the graph is a quadratic function
D.
nonlinear, the graph is an exponential function
Hint
10.
Determine whether the graph represents a linear or nonlinear function. Explain.
A.
nonlinear, the graph is an exponential function
B.
nonlinear, the graph is an inverse variation function
C.
nonlinear, the graph is a cubic function
D.
linear, the graph is a straight line
Hint
11.
Graph
y
= 2
x
2
- 1.
A.
B.
C.
D.
Hint
12.
Graph
y
= 2
x
3
+ 3.
A.
B.
C.
D.
Hint