Examine the diagram and information to answer the question. A circle in the coordinate plane has a radius of 3 and a center at point (4,1). Point (x,y) lies on the circle. The triangle formed by points (4,1), (4,y) and (x,y) is a right triangle. Circle as described in the text. 2019 StrongMind. Created using GeoGebra. What is the equation of the circle? Match the expression or equation to the steps used to find the equation of the circle