Relations and Functions

If every input has exactly one output, is the relation a function?

• Yes

• No

• Not sure

• Maybe

If there is at least one input with multiple outputs, is the relation a function?

• Yes

• Depends on the context

• No

• Maybe

If a relation passes the vertical line test, is it a function?

• Sometimes

• Yes

• No

• Depends on the equation

Can a relation be a function if it has repeated inputs with different outputs?

• No

• Yes

• It depends

• Maybe

Is this graph a function or not a function? 

• Function
• Not a Function

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4