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Worksheets

Functions Review

Total questions: 23

Worksheet time: 1hrs 16mins

Name
Class
Date
1.
A relation where every input matches with exactly one output is called what?
a)
a parabola
b)
irrational
c)
exponential
d)
function
2.
Find the function rule.
a)
y = 2x
b)
y = 5x+1
c)
y = 2x-3
d)
y = 2x +3
3.
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)

4.
Is this table a function or not a function? 
a)
Function
b)
Not a Function
5.
Find the rate of change
a)

1

b)

2

c)

11

d)

Not a constant ratio/Nonlinear

6.

The function rule for the table is y = x + 7. What are the correct ordered pairs for the table?

a)

{(0,7), (1,-6), (2,-7), (3,-8)}

b)

{(0,7), (1,8), (2,9), (3,10)}

c)

{(0,7), (1,14), (2,21), (3,28)}

d)

{(0,7), (1,8), (2,11), (3,13)}

7.
A linear function is a function whose graph is a...
a)
Curved line
b)
An upright U shape
c)
Straight line 
d)
None of the above 
8.

Evaluate f(x)= -2x+13   for f(10)

a)

-7

b)

1

c)

-8

d)

7

9.

Write a function that represents the statement below:

A pizzeria charges $12 per pizza plus an additional $3 for delivery. 

a)

c = 12p + 3

b)

c = 12p

c)

c = 3p

d)

c = 12 + 3p

10.

What is the domain?

a)

the set of all x-values

b)

the set of all y-values

11.
Write a rule for the following function table
a)

 y = 7x

b)

 y = 5x

c)

y = x + 7 

d)

 y = x ÷ 7

12.
f(x)=4x+5
f(4)=
a)
21
b)
-11
c)
-31
d)
25
13.

Write a function that represents the statements below:

Erika has a savings account that has $125. She starts saving $5 per week for a new iPhone.

a)

f(x) = 125x + 5

b)

f(x) = 5x + 125

c)

f(x) = 125x - 5

d)

f(x) = 5x - 125

14.
f(x) is the same thing as ______.
a)
y
b)
x
c)
input
d)
an equation
15.
For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.
a)
D: {1, -3, -4,}
R: {0, 1, 2, -4}
b)
D: {-4, 0, 1, 2}
R:{-4, -3, 1}
c)
D: {0, 1, 2, 3, 4}
R:{1, -3, -4}
d)
D: {0, 1, 2, -4}
R: {1, -3, -4, 1}
16.

What is the range?

a)

the set of all x-values

b)

the set of all y-values

17.

Does the table represent a linear relationship between x and y?

a)

No, the rate of change is not constant.

b)

Yes the rate of change is 1.

c)

Yes, the rate of change is 2.

d)

No, the table does not represent a relationship.

18.
Find the missing OUTPUT value.
a)
-2
b)
3
c)
9
d)
-7
19.

Does the graph represent a function?

a)

YES

b)

NO

20.
Find the 2 missing OUTPUT values.
a)
6 & 12
b)
4 & 12
c)
4 & 2
d)
6 & 2
21.

If f(x) = 3x + 4x + 5x + 2, find f(3)

a)

21

b)

39

c)

38

d)

21

e)

12x + 2

22.
What is the function of the table?
a)
y=3x+1
b)
y=4x-2
c)
y=x+1
d)
y=x+7
23.
Is the function Linear or Nonlinear?
a)
Linear
b)
Nonlinear