Relation vs. Functions

Look at this set of ordered pairs: (4, 13), (1, 12), (6, 9)

Is this relation a function?

• Yes

• No

Tags

CCSS.8.F.A.1

Look at the graph.

Is this relation a function?

• Yes

• No

Does the mapping represent a function?

• It does represent a function because each input has one output.

• It does represent a function because each output has one input.

• It does not represent a function because an input has more than one output.

• It does not represent a function because an output has more than one input.

Tags

CCSS.8.F.A.1

• This is a Function
• This is Not a Function

Tags

CCSS.8.F.A.1

Does the graph represent a function? Does it pass the vertical line test?

• 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 that have different outputs.

• No, because there are not enough dots to tell

• Yes because the dots are all red

Which of these relations is a function?

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

Does this mapping diagram represent a function?

• No, because there are repeating input values

• Yes, because there are no repeating input values

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Tags

CCSS.8.F.A.1

• Function
• Not a Function