1.9 - Relations and Functions

State the domain of the relation.

• { 8, -6, 2, 0 }
• ( 8, -6, 2, 0 )
• (5, -9, 5, -8)
• { 5, -9, 5, -8 }

State the range of the relation. 
{ (3, -2) , (4, -3), (5, -4), (6, 0) }

• (3, -2, 4, -3)
• (-2, -3, -4, 0)
• { -2, -3, -4, 0 }
• { 3, 4, 5, 6 }

The _____ is used to determine whether or not a graph represents a function.

• function notation

• discrete function

• continuous function

• vertical line test

• horizontal line test

Is this relation a function?

• Yes

• No

Tags

CCSS.8.F.A.1

Does this graph represent a function?

• Yes

• No

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

Tags

CCSS.8.F.A.1

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

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

• Function
• Not a Function 

Tags

CCSS.8.F.A.1

A relation where every input yields one and only one output is called what?

• Relation
• Linear
• Exponential
• Function

Tags

CCSS.8.F.A.1

Is this a function? 

• Yes
• No