Identify If Its a Function

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values

• No, because the vertical line test shows there are repeating input values

Tags

CCSS.8.F.A.1

Which of the relations below is a function?

• <(2, 3), (3, 4), (5, 1), (2, 4)>

• <(2, 3), (3, 4), (6, 2), (7, 3)>

• <(2, 3), ( 3, 4), (6, 2), (3, 3)>

Tags

CCSS.8.F.A.1

The graph of a relation is shown below. Is the relation a function?

• Yes

• No

• Cannot be determined from a graph

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

• Relation

• Linear

• Exponential

• Function

Tags

CCSS.8.F.A.1

Does the mapping of these points represent a function? (Note: the left oval represents your x values and the right oval represents your y values)

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

Answer explanation

The relation is not a function because it assigns multiple outputs to at least one input. The domain is {-5, -2, 2} and the range is {-4, 1, 3}, confirming the correct choices.

Tags

CCSS.8.F.A.1

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

Answer explanation

The relation is not a function because it assigns multiple outputs to at least one input. The domain is {-5, -2, 2} and the range is {-4, 1, 3}, confirming the correct choices.

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Is this a function? 

• Yes 

• No

Given the relation A = {(5, 2), (7, 4), (9, 10), (x, 5)}. Which of the following values for x will make relation A a function?

• 7

• 9

• 4

Tags

CCSS.8.F.A.1