Functions & Slope Unit Review [8.15ab & 8.16]

Is this mapping a function and how can you tell?

(Hint: click on the image to enlarge it)

• Yes its a function cause all the numbers have lines

• No it's not a function because there a 5 in both ovals

• No it's not a function because the x value 5 has 2 outputs.

• No it's not a function because the y value 5 has 2 inputs.

Which of the following best describes a function?

• A special relationship where each x and y are individually paired
• A special relationship where each x value has only one y value 
• A special relationship where each y value has only one x value 
• A special relationship where each the x and y value and always equal 

Does the graph represent a function?

(Hint: click on the image to enlarge it)

• Yes

• No

Which mapping diagram is not a function?

• 
• 
• 
• 

Identify all of the functions

• 
• 
• 
• 
• 

What is the domain of a relation?

• the set of all x-values

• the set of all y-values

What is the domain of the relation shown in the table?

• {12}

• {6, 18}

• {3, 9, 15, 16}

• {13}

What is the domain?

• {-2, -1, 0, 1, 8}
• {3, 5, 7 , 9, 0}
• {-2, -1, 0, 1, 3, 5, 7, 8, 9}
• {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which is the set of all y-values or the outputs?

• Domain

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range of the mapping?

• {1, 2, 4}

• {0, 1, 2, 3}

• {0, 3}

• {1, 4}