[numpad0]

I always thought the answer to verbal query "let y=1/x, x=0, find y" was "Well, the answer is the Y axis of the plot". Surprising that people have to be reminded that X can be signed. I've had similar conversation IRL.

[ConspiracyFact]

You seem to have your axes confused. The value of y can’t be “the y-axis”, which is the line x = 0 (for all values of y).