Identifying Functions

Front

Is this a function or not a function?

Back

Function

Front

Is this mapping a function or not a function?

Back

Not a Function; the x's repeat

Front

What is the definition of a function?

Back

Every input has only one output.

Front

Is this graph a function or not a function?

Back

Function

Front

How do you use the vertical line test?

Back

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.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function.

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs.

Front

What is a mapping diagram?

Back

A visual representation of a function showing how each input is paired with an output.

Front

What does it mean for x-values to repeat in a function?

Back

If x-values repeat, it means the relation is not a function.