(x - 2)^2 + (y + 3)^2 = 4
Test each point, one by one,to determine which coordinates satisfy the equation. For example, (0,0) results in (0-2)^2 + (0+3)^2 = 4, which in turn is 4 + 9, which does NOT equal 4. Reject (0,0). Move on to testing the other 3 points.
