Identifying a Relation or a Function

All of the x values are called what?

• Inputs

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

All of the y values are called what?

• Domain

• Outputs

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is the following a function?

• Yes, this is a function.

• No, it's not a function.

• Can't be determined with this information.

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

Tags

CCSS.8.F.A.1

Does this mapping diagram represent a function?

• No, because an input value goes to multiple output values

• Yes, because each input goes to one and only one output

Tags

CCSS.8.F.A.1

The following is not a function because...

• There are two values that equal 2.

• x = 10 and x = 40 has two values each.

• In the f(x) column, the 5 repeats.

• This table is actually a function.

Tags

CCSS.8.F.A.1

How do you use the vertical line test?

• Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once then the graph is not the graph of a function.

• Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once, then it is a function.

Is this mapping a function or not a function?

• Function; the x's don't repeat

• Not a Function; the x's repeat

Tags

CCSS.8.F.A.1