# A FUNCTION? Maybe Not?

#### xyz_1965

See picture for question.

#### Cervesa

The relation is an ellipse centered at the origin. The resultant graph does not pass the vertical line test.

#### xyz_1965

The relation is an ellipse centered at the origin. The resultant graph does not pass the vertical line test.
Does this mean my reasoning is wrong, Mr. Beer?

#### Prove It

MHF Helper
Does this mean my reasoning is wrong, Mr. Beer?
Your logic is correct. A relation is only a function if for every x value, there is only one y value.