Completing the Square Method for Finding the Center and Radius of a Circle

The video tutorial explains the different forms of circle equations, including the basic form centered at the origin and the expanded form. It demonstrates how to find the center and radius of a circle using two methods: comparison with the general equation and completing the square. The tutorial provides examples to illustrate both methods, emphasizing the importance of understanding the relationship between the equation's coefficients and the circle's properties.

What is the formula to find the radius of a circle given its center?

Explain the process of completing the square to find the center and radius of a circle.

What are the steps to convert the expanded form of a circle's equation back to its general form?