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Worksheets

Evaluating Functions

Total questions: 15

Worksheet time: 23mins

Name
Class
Date
1.

f(x) = 3x - 4, Evaluate f(3)

a)
5
b)
13
c)
2
2.

f(x) = -3x + 4, evaluate f(-2)

a)
-2
b)
2
c)
10
3.

f(x) = 6x - 18, evaluate f(-3)

a)
0
b)
36
c)
-36
4.

f(x) = -5x + 8, evaluate f(3)

a)
-7
b)
7
c)
0
5.

f(x) = -6x +8x, evaluate f(3)

a)
10
b)
6
c)
-6
6.

f(x) = 7x -12, evaluate f(-2)

a)
2
b)
-20
c)
-26
7.

f(x) = 3x - 9, evaluate f(5)

a)
f(5) = 6
b)
f(5) = 16
c)
f(5) = -4
d)
f(5) = 24
8.

f(x) = 2x + 25, evaluate f(5)

a)
f(5) = 60
b)
f(5) = 40
c)
f(5) = -15
d)
f(5) = 35
9.
If (y=2x+6) is a function. What is the output value when the input value is 2. 
a)
12
b)
-2
c)
10
d)
21
10.

ƒ(x) = x² − 4x − 3 , evaluate f(4)

a)
10
b)
7
c)
-3
d)
0
e)
-5
11.

The x values represent the...

a)

Output

b)

Input

c)

Ordered Pair

d)

Point

12.

f(x) = 4x + 5, evaluate f(4)

a)

21

b)

-11

c)

-31

d)

25

13.

f(x) = -2x + 13 , evaluate f(10)

a)
-7
b)
1
c)
-8
d)
7
14.

g(x) = 11 - x, evaluate g(-7) 

a)
4
b)
17
c)
18
d)
-77
15.

f(x) = -2x - 12, evaluate f(-5)

a)
-22
b)
-2
c)
-19
d)
-5