Graph the following relation. Determine, using the vertical line test, if the relation is a function: x = 2 for all values of y.
This graph is a vertical line through x = 2:
Since a vertical line drawn through x = 2 hits every point in this infinite relation, the relation is not a function. In fact, it couldn't be less of a function if it tried. It is almost as if someone told him he should be a function, and he is acting out in utter defiance. Or maybe we're attributing too many human emotions and behaviors to non-thinking entities. It's been known to happen.