1.
Which equation represents a nonlinear function?
A.
y
= 5
x
2
+ 1
B.
y
= 5
x
C.
y
= 5
x
+ 1
D.
y
= 5
Hint
2.
Find the graph of
y
= 2
x
2
.
A.
B.
C.
D.
Hint
3.
Find the graph of
y
= 3
x
2
- 1.
A.
B.
C.
D.
Hint
4.
Which of the following functions is linear?
A.
y
=
x
+ 2
B.
y
=
x
2
+ 1
C.
y
= 2
x
2
D.
y
=
´
2
Hint
5.
Match the following graph with its function table.
A.
x
y
−2
−3
−1
−2
0
−1
1
0
B.
x
y
−2
0
0
2
2
4
4
6
C.
x
y
1
3
2
4
3
5
4
6
D.
x
y
−2
−4
0
−2
2
0
4
2
Hint