Functions from Mappings

Does this represent a function?

• Yes

• No

Does this represent a function?

• Yes

• No

• A

• B

• C

• D

Does this represent a function?

• Yes

• No

Does this represent a function?

• Yes

• No

• A

• B

• C

• D

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

• Yes
• No

• Yes
• No

• Yes
• No