Function vs Nonfunction

Front

What test can we use to determine if a graph is a function?

Back

Vertical Line Test

Front

Is this a function?

Back

No

Front

Is this a function?

Back

Yes

Front

Is this a function?

Back

No

Front

Is this a function?

Back

Yes

Front

Is this a function?

Back

No

Front

Is this a function?

Back

Yes

Front

Is this a function?

Back

No

Front

What makes something a function?

Back

Every input has exactly one output