Identifying Functions, Maps, and Tables

Does this table represent a function?

• Yes

• No

Tags

CCSS.8.F.A.1

Which of the following is a function?

• Mapping A

• Mapping B

• Table C

• Table D

Tags

CCSS.8.F.A.1

Why is this a function?

• Function because each input has only one output

• Function because an input has more than one output

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

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• 
• 
• 

Tags

8.5.G

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

.

• Function

• Not a Function

Tags

CCSS.8.F.A.1

What could I put into the third box to make this NOT a function.

• 2

• 3

• -3

• -1

Tags

CCSS.8.F.A.1

Does this mapping diagram represent a function?

• Yes it is a function

• No it is not a function

Answer explanation

There is more than one arrow coming from -35, so it is not a function. The input -35 has two outputs.

Tags

CCSS.8.F.A.1

Does the table represent a function?

• Yes it is a function

• No it is not a function

Answer explanation

The x-values 3,2 and 1 repeat so it is not a function.

Tags

CCSS.8.F.A.1