Question

why?
the relation fails the vertical line test.
there is at least one x - value that has more than one y - value paired with it.
there is an input value (x) that corresponds with more than one output value (y).
there is not a vertical line that contains more than one ordered pair from the relation.

Explanation:

A relation is a function if it passes the vertical line test, meaning no vertical line intersects the graph more than once. This ensures every x-value (input) has only one corresponding y-value (output). The given graph passes this test, so it is a function, and the correct reasoning is that no vertical line contains more than one ordered pair from the relation.

Answer:

Yes
There is not a vertical line that contains more than one ordered pair from the relation.