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WorksheetsFunctions 2020 Identifying & Evaluating
Total questions: 32
Worksheet time: 3hrs 40mins
Name
Class
Date
1.
If f(x) = 3x + 1, then what does f(2) =
a)
5
b)
6
c)
7
d)
8
2.
If f(x) = 1/2x + 5, what does f(10) =
a)
8
b)
9
c)
10
d)
11
3.
If f(x) = 2x + 5 what does f(3) =
a)
9
b)
10
c)
11
d)
12
4.
f(x)=x2-5x
f(4)=
f(4)=
a)
-4
b)
126
c)
24
d)
84
5.
Evaluate f(x) = x2 for f(-8)
a)
64
b)
-64
c)
-16
d)
16
6.
Evaluate f(t)=-2t2+ 1 for f(-3)
a)
19
b)
37
c)
-17
d)
-11
7.
f(x)=-x+3
f(x) = 7
f(x) = 7
a)
-4
b)
-6
c)
3
d)
13
8.
Which of the following is a function?
a)
b)
c)
d)
9.
Is the following a function?
a)
Yes, this is a function.
b)
No, it's not a function.
c)
Can't be determined with this information.
10.
Which of the following is a function?
a)
A
b)
B
c)
C
d)
D
11.
Which is a function?
a)
W
b)
X
c)
Y
d)
Z
12.
Which of the following is NOT a function?
a)
b)
c)
d)
13.
The following is not a function because...
a)
There are two values that equal 2.
b)
x = 10 and x = 40 has two values each.
c)
In the f(x) column, the 5 repeats.
d)
This table is actually a function.
14.
Does the mapping of these points represent a function?
a)
Function
b)
Not a Function
15.
Which of these tables represent a function?
a)
A
b)
B
c)
C
d)
D
16.
a)
Yes
b)
No
17.
Is this relation a function?
a)
Yes
b)
No
18.
Which graph is a function?
a)
Graph 1
b)
Graph 2
c)
Graph 3
d)
Graph 4
19.
Which graph is NOT a function?
a)
Graph 1
b)
Graph 2
c)
Graph 3
d)
Graph 4
20.
All of the x values are called what?
a)
Domain
b)
Range
c)
Relation
d)
Function
21.
All of the y values are called what?
a)
Domain
b)
Range
c)
Relation
d)
Function
22.
Which set of ordered pairs is a function?
a)
(9,5) (10,5) (9,-5) (10,-5)
b)
(3,4) (4,-3) (7,4) (3, 8)
c)
(6,-5) (7, -3) (8, -1) (9, 1)
d)
(2, -2) (5, 9) (5, -7) (1, 4)
23.
Which set of coordinates is NOT a function?
a)
(5,10) (2, -3) (8,12) (-4, 2)
b)
(5, 10) (2, 10) (3, 10) (-4, 10)
c)
(5, 10) (2, -3) (8, 12) (2, -4)
d)
(10, 5), (-3, 2) (12, 8) (2, -4)
24.
a)
Function
b)
Not a Function
25.
a)
Function
b)
Not a Function
26.
If f(x) = 6x - 9, find f(4).
a)
(4, 1)
b)
(4, 33)
c)
(4, 15)
d)
(4, -7)
27.
If f(x) = -3x - 8, find f(-1).
a)
f(-1) = 5
b)
f(-1) = -5
c)
f(-1) = -12
d)
f(-1) = -10
28.
b(x) = 2x - 3
b(-1) = ______
b(-1) = ______
a)
-1
b)
5
c)
1
d)
-5
29.
What is the definition of function?
a)
Has inputs and outputs
b)
Every input has only ONE output
c)
Inputs have different outputs every time
d)
x-values and y-values
30.
Which of these is NOT the same
a)
Range
b)
Input
c)
Dependent Value
d)
Y-Value
31.
Is the relation a function? Why.
a)
Yes, because the x-value 11 has two y-values pair with it.
b)
Yes, because each x-value has only one y-value paired with it.
c)
No, because the x-value 11 has two y-values pair with it.
d)
No, because each x-value has only one y-value paired with it.
32.
Which set of values is a function?
a)
(9,5) (10,5) (9,-5) (10,-5)
b)
(3,4) (4,-3) (7,4) (3, 8)
c)
(6,-5) (7, -3) (8, -1) (9, 1)
d)
(2, -2) (5, 9) (5, -7) (1, 4)
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