Is it a function?

Front

If you have a function, then:

Back

Every unique input HAS a unique output.

Front

If we have a table or set of coordinates, what question should we ask ourselves first?

Back

Do you have repeated inputs (x-values)?

Front

If a table or set of coordinates has repeated inputs, what do we ask ourselves next?

Back

Are the outputs (y-values) different?

Front

Is this a function?

Back

Yes, it is a function.

Front

Is this a function?

Back

No, it is not a function.

Front

Is this a function?

Back

Yes, it is a function.

Front

If we are given a graph of a relation, what do we ask ourselves next?

Back

Does it pass the Vertical Line Test?

Front

Is this a function?

Back

Yes, it is a function.

Front

Is this a function?

Back

Yes, it is a function.

Front

Is this a function?

Back

No, it is not a function.