1. The problem statement, all variables and given/known data |zi - 3| = Pi 2. Relevant equations Well, it clearly has to do with a circle but I do not believe there is a general equation for what I am asking about. 3. The attempt at a solution There is no general solution not trying to solve anything. I want to know exactly what happens if there is a variable attached to z in a complex circle equation. For example, |z - 3| = Pi is a circle centered at 3,0 with radius pi on the complex plane. However, I do not quite understand what I should do if there is a variable such as i attached to z in the equation. I do not wish to be picky, but I'm not looking for any secret hints just a complete answer on what happens if there is a variable attached to z in the equation.