What is -44 minus 11n equals -11 in two step equation form?

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

What can you determine about the solutions of this system

How can you tell when x and y are not directly proportional?