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Worksheets

Functions

Total questions: 52

Worksheet time: 57mins

Name
Class
Date
1.

The graph of any straight line is a function.

a)

Always true.

b)

Sometimes true.

c)

Never true.

2.
A curved line graph is not a function.
a)
Sometimes true.
b)
Always true.
c)
Never true.
3.
A function has only one output for each input.
a)
True
b)
False
4.
You always check these values to see if they repeat when checking for a function.
a)
The Domain
b)
The Range
c)
The y-values
d)
The Dependent values
5.

How do you check a GRAPH to see if it is a function?

a)

Use the horizontal line test

b)

Use the vertical line test

c)

Use guess and check

d)

Flip a coin

e)

Use the slope formula

6.
If you plug in a 2 and get a 11, and you plug in a 4 and get a 21, what is the function used?
a)
f(x) = 5x + 1
b)
f(x) = 5x - 2
c)
f(x) = 4x + 3
d)
f(x) = 4x + 5
7.
If you plug in a -2 and get a 7, and you plug in a -3 and get a 9, and you plug in a 4 and get a -5, what is the function used?
a)
f(x) = -x + 2
b)
f(x) = -2x + 3
c)
f(x) = -2x - 3
d)
f(x) = 4x - 3
8.
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)
9.
Is this mapping a function or not a function? 
a)
Function
b)
Not a Function 
10.
Is this graph a function or not a function? 
a)
Function 
b)
Not a Function
11.
Is this table a function or not a function? 
a)
Function
b)
Not a Function
12.
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.
13.
For the function f(x) = -3x + 3 find f(0).
a)
0
b)
-3
c)
3
d)
-1
14.
Sarah is bringing treats to her middle school class on her birthday. The number of treats she brings in is based on the number of students in her class.
t = the number of treats
s = the number of students
Which of the variables is dependent?
a)
s
b)
t
15.
Carey and Justin are raising money to purchase books for their school's library. The more money they raise, the more books they will be able to purchase for the library.
m = the amount of money Carey and Justin raise
b = the number of books Carey and Justin will be able to purchase
Which of the variables is dependent?
a)
m
b)
b
16.
Paco's daughter will be participating in an upcoming dance recital. She will require a different costume for each dance she plans to performs.
c = the number of costumes Paco's daughter will require
d = the number of dances Paco's daughter plans to perform
Which of the variables is independent?
a)
c
b)
d
17.
Which panda will weigh more at 5 weeks?
a)
Mochi
b)
Kappa
c)
Po the dragon warrior
d)
Jack Black
18.
Which equation matches the relationship represented by the table? 
a)
y = -3x
b)
y = 1/3x - 4
c)
y = 3x - 4
d)
y = 4x - 3
19.

In which quadrant is (9, 2) located?

a)

I one

b)

II two

c)

III three

d)

IV four

20.

What is the function of the table?

a)

y = 2x

b)

y = x + 2

c)

y = x/2

d)

y = x - 2

21.
What is the function of the table?
a)
y=3x+1
b)
y=4x-2
c)
y=x+1
d)
y=x+7
22.

y=x+8

What is the missing number?

a)

6

b)

7

c)

5

d)

4

e)

8

23.

What are the missing numbers in the table?

a)

3, 7, 22, 30, 35

b)

4, 5, 10, 13, 15

c)

1, 2, 7, 10, 12

d)

3, 6, 21, 30, 36

24.
Which equation best represents the relationship between x and y in the table shown?
a)
y= 5x+5
b)
y=1/5x+5
c)
y=15x+5
d)
y=10x+5
25.

___________is a relation that assigns exactly one output value to one input value.

a)

A Dependent set

b)

An independent relation

c)

A Function

d)

A Relation

26.
Describes the relationship between the input and the output.
a)
function
b)
function rule
c)
relation
d)
linear
27.
Another way to describe the input value of a function.
a)
Independent value
b)
Dependent Value
c)
function 
d)
relation
28.
Another way to describe the output of a function.
a)
Independent Value
b)
Dependent Value
c)
Function
d)
Relation
29.
When the Input and output of a function table can be represented as a set of ordered pairs, they are called a what?
a)
Dependent set
b)
Output
c)
Relation
d)
Linear Set
30.
Forms a straight line when graphed.
a)
Linear
b)
Function Rule
c)
Relation
d)
Independent Value
31.
In the ordered pair, which set represents the domain?
{(6, -6), (7, -7), (3, -3)
a)
-3, -6, -7
b)
3, 6, 7
32.
Which quadrant is the ordered pair (-4, -6) located?
a)
Quadrant 1
b)
Quadrant 2
c)
Quadrant 3
d)
Quadrant 4
33.
Which ordered pair is in quadrant 1?
a)
(4, -1)
b)
(-1,-1)
c)
(-3, 3)
d)
(2, 2)
34.
The image is an example of _____________
a)
ordered pairs
b)
domain
c)
range
d)
coordinate grid
35.
Is the graph proportional or non proportional?
a)
proportional
b)
non proportional
36.
Which graph is proportional?
a)
A
b)
B
c)
C and D
d)
All of the graphs are proportional
37.
a)
Function
b)
Not a Function
38.
A function is a set of ordered pairs where each y value has an unique x value.
Which relation is NOT a function:
a)
(0, 1), (2, 3), (4, 5), (6, 7)
b)
(0, 0), (1, 1), (2, 2), (3, 3)
c)
(1, 2), (1, 3), (1, 4), (1, 5)
d)
(1, 1), (2, 1), (3, 1), (4, 1)
39.
Does this mapping diagram represent a function?
a)
No, because there are repeating input values
b)
Yes, because there are no repeating input values
40.
If there are 3 rooms and  the 1st one has a Zombie in it, the 2nd one is a room that´s on fire, and the 3rd one has a lion that hasn't eaten in 4 weeks; into which room do you go ?
a)
The lion
b)
The fire
c)
The Zombie
d)
I don't know!!
41.
What is full of holes but still holds water
a)
sponge
b)
a bucket
c)
a dog
d)
 yourself
42.

Click on each word that means the "Domain"

a)

Range

b)

Input

c)

x values

d)

Independent variable

e)

Dependent variable

43.

Which of the following are ways to represent functions?

a)

Graph

b)

Table

c)

Photo

d)

Mapping Diagram

e)

List of ordered pairs in a set

44.

Which of the following are functions? Choose all that are.

a)

(2,4) (3,6) (4,8) (5,10) (6,12)

b)

(1,0) (2, 3) (2, 4) (3, 5) (4, 6)

c)

(5,8) (6,9) (7,10) (8,11) (9,12)

d)

(3,4) (3,5) (3,6) (3,7) (3,8) (3,9)

e)

(1,2) (2,2) (3,2) (4,2) (5,2) (6,2)

45.

Pablo has $12. He earns $7 for every lawn he mows. Write an equation to find the amount of money "y" he will have after "x" number of lawns.

a)

y = 12x + 7

b)

y = 7x + 12

c)

y = 12 + x + 7

d)

y = 5x

46.

A water tank holds 84 gallons. When it began to leak it lost 3 gallons every hour. Write an equation to find the amount of water "y" the tank will have after "x" number of hours.

a)

y = 84 - 3x

b)

y = 3 - 84x

c)

y = 3x - 84

47.
Elliot wants to sign up for a gym membership. The gym require a $35 fee to sign up, then $12 every month. Write an equation to find the amount Elliot will pay for his gym membership "y" after "x" amount of months.
a)
y = 35x + 12
b)
y = 12x + 35
c)
y = 12x - 35
48.
Luxie wants to buy draw string bags for a fund raiser. We Make Bags charges $65 per order and $3.50 for each additional bag. Write an equation to find the amount of money "y" it will cost Luxie for "x" amount of bags.
a)
y  = 3.5x + 65
b)
y = 65x + 3.5
c)
y = 65x - 3.5
49.

Which mapping diagrams are functions?

a)
b)
c)
d)
e)
50.

Which table is not a function?

a)
b)
c)
d)
51.

Which one is not part of the Avengers?

a)
b)
c)
d)
e)
52.

Which ones are not functions?

a)
b)
c)
d)
e)

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