But it doesn't explain it. It is a graph of the equation. But that doesn't explain the equation. That's why I gave the parabola example.
Showing a graphical form of the equation is still only the question but in another format. That's what makes it circular. If you ask why something is Y = X2 and I only show you a graph of Y = X2, that's not answer. It's the question in a graphical format.
The community doesn't like what you are writing. You need to hand over your username/PW to someone that will write what is in line with their standards