Is It a Function?

Front

Is this a function? Explain.

Back

Yes; it passes the vertical line test.

Front

What is the definition of function?

Back

Every input has only ONE output.

Front

Does this mapping diagram represent a function?

Back

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

Front

Is this graph a function or not a function?

Back

Not a Function.

Front

Which graph does NOT pass the vertical line test?

Back

Graph 1.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is an input in a function?

Back

The value that is put into a function, often represented as 'x'.

Front

What is an output in a function?

Back

The value that comes out of a function, often represented as 'y'.

Front

Can a function have the same output for different inputs?

Back

No, each input must have a unique output.

Front

What is a mapping diagram?

Back

A visual representation that shows how each input is paired with an output.