# Quiz: Functions And Relations Test!

19 Questions | Total Attempts: 253  Settings  .

• 1.
What is the closest definition of a function?
• A.

A function relates an input to an output.

• B.

An equation that has a dependent variable inside the parenthesis

• C.

An equation in which the x is always dependent

• 2.
It is the collection of related objects thru an ordered pair.
• A.

Set

• B.

Relation

• C.

Function

• 3.
Is a group of objects with the same characteristics.
• A.

Set

• B.

Relation

• C.

Function

• 4.
Given U={1 , 2,3,5,8,9,12 ,13}   A={ 1,2,3}    B= { 5 , 12 ,13 } what is A - B?
• A.

U

• B.

A

• C.

B

• D.

Null

• 5.
Given U={1 , 2,3,5,8,9,12 ,13}   A={ 1,2,3}    B= { 5 , 12 ,13 ,8,9} what is B - U?
• A.

U

• B.

A

• C.

B

• D.

Null

• 6.
Given U={1 , 2,3,5,8,9,12 ,13}   A={ 1,2,3}    B= { 5 , 12 ,13 } what is U - B?
• A.

U

• B.

A

• C.

B

• D.

NULL

• 7.
Collections in a set need to be ordered.
• A.

True

• B.

False

• 8.
The Universe contains all the possible values in a set.
• A.

True

• B.

False

• 9.
The following is presented in what set notation?  A = { 2, 3, 4,5 }
• A.

Set Builder

• B.

Roster Form

• C.

Normal Form

• 10.
What is the set builder notation of A ={ 4,9,16,25} ?
• A.

A = { x | x are the even numbers from 1 to 40}

• B.

A = { x | x are the squares from 1 and 36}

• C.

A = { x | x are the squares between 1 and 36}

• D.

A = { x | x are the squares between 1 and 40}

• 11.
What is f -1  of  f(x)= 2x + 3?
• A.

X/2 + 3

• B.

Y/2 - 3

• C.

3y -2

• D.

3 - 2x

• 12.
What is the set notation ( letter symbol) for Integers?
• 13.
In a function, x can have one or more elements in Y.
• A.

True

• B.

False

• 14.
Relations are presented through ordered pairs.
• A.

True

• B.

False

• 15.
What is g(f(x)) when f(x) = 2x +3 and g(x) = x -1?
• A.

2x-1

• B.

2(x+1)

• C.

2x + 1

• D.

2(x -1)

• 16.
What property of relationship is shown by the figure below?
• A.

Reflexive

• B.

Transitive

• C.

Symmetric

• 17.
What type of function is shown by the figure below?
• A.

One to one

• B.

Onto

• C.

Bijection

• D.

Not a function

• 18.
What type of function is shown by the figure below?
• A.

One to one

• B.

Onto

• C.

Bijection

• D.

Not a function

• 19.
What type of function is shown by the figure below?
• A.

One to one

• B.

Onto

• C.

Bijection

• D.

Not a function

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