X and y together they grow
or one and one together they fall
It doesn't matter the change in Y
Because X follows right behind

One and one they are holding hands
The distance doesn't changes the case
For each X there’s only one Y
But slutty X because more than one Y she needed to have

Only one domain,
for every unique range
That was the only rule
of the function, you fool!

It is a line, of life and death
and when I checked
More than one was in your life
And only one can be in mine.

Y cutting words affected X,
It doesn't work this way
I can’t have you if you’re
just going to graph.

Whatever number comes in play
When you know they can’t succeed
in this always constant motion
it just doesn't function!