Question

Does anyone know how to do Equations of a circle ?

Answer 1

Equation of a circle is basically:
\[1=x ^{2}+y ^{2}\]

Thats basically imagine 4 quadrants

A circle will always have alternating coordinate pairs. In one quadrant it will be positive, in the other quadrant it will be negative. Sometimes the coordinate pairs will be switch-swapped.

There will always be 2 of the same x coordinate or 2 y coordinates.