Functions from Ordered Pairs and Mapping

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values paired with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

The mapping represents a ___________.

• Function

• Relation

Tags

CCSS.8.F.A.1

The set of ordered pairs below represents the number of tickets sold for a fundraiser. The​ x-coordinates represent the day and the​ y-coordinates represent the number of tickets sold on that day. Draw a mapping diagram of the relation. Is the relation a​ function?

{ (1,12), (2,24), (3,36), (4,48), (5,48) }

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

Which point could be removed so that the mapping represents a function?

• (4, 5)

• (16, 22)

• (18, 37)

• (6, 16)

Tags

CCSS.8.F.A.1

• 
• 
• 
• 

Tags

8.5.G

Is this set of ordered pairs a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

Decided if each is a function or not. Choose yes or no for each.

Tags

CCSS.8.F.A.1

The table shows y as a function of x. Which ordered pairs can also belong to the function? Select TWO correct answers.

• (-4, 3)

• (-2, 3)

• (4, 3)

• (6, 8)

• (-8, 9)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is this a function or not a function?

• Function

• Not a function

Tags

CCSS.8.F.A.1

Which list of ordered pairs matches the mapping diagram?

• {(7, -3), (7, -2), (14, -1), (14, 0)}

• {(-3, 7), (-2, 7), (-1, 14), (0, 14)}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1