Test:
Functions I - Challenging
×
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Question 1:
If
f
(
x
)
=
−
1
7
x
+
12
, find
f
(
4
)
A
11
5
7
B
11
4
7
C
11
6
7
D
11
3
7
Question 2:
If
f
(
x
)
=
3
−
x
, find
f
(
5
)
A
2
B
0
C
−
2
D
No answer
Question 3:
If
f
(
x
)
=
x
x
−
2
, find
f
(
−
3
)
A
1
5
B
3
5
C
2
5
D
1
2
3
Question 4:
If
f
(
x
)
=
6
−
x
, find
f
(
−
18
)
A
No answer
B
0
C
2
6
D
6
Question 5:
If
f
(
x
)
=
|
x
−
7
|
, find
f
(
3
)
A
−
2
B
2
C
2
3
D
No answer
Question 6:
What is the domain of:
f
(
x
)
=
x
+
3
(
x
−
7
)
(
x
−
4
)
A
x
∈
R
B
No answer
C
x
∈
R
/
{
−
7
,
−
4
}
D
x
∈
R
/
{
7
,
4
}
Question 7:
What is the domain of:
f
(
x
)
=
|
5
−
x
|
A
x
≤
5
B
x
∈
R
C
x
∈
R
/
{
5
,
0
}
D
x
∈
R
/
{
5
}
Question 8:
Which function represents the following graph:
A
f
(
x
)
=
2
7
x
+
2
B
f
(
x
)
=
−
7
x
+
2
C
f
(
x
)
=
−
7
x
+
2
D
f
(
x
)
=
7
x
+
2
Question 9:
Which function represents the following graph:
A
f
(
x
)
=
(
x
+
1
)
(
−
x
+
1
)
B
f
(
x
)
=
|
x
|
+
1
C
f
(
x
)
=
|
x
−
1
|
D
f
(
x
)
=
|
x
+
1
|
Question 10:
Which function represents the following graph:
A
f
(
x
)
=
−
x
2
+
1
B
f
(
x
)
=
x
2
−
1
C
f
(
x
)
=
1
2
x
2
−
1
D
f
(
x
)
=
−
1
2
x
2
+
1
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