Outcomes
        In this lesson you will learn 
        - Use transformations to derive the equations of circles with centres off the origin. 
By the end of this section you should be able to: 
        - Analyze and translate between symbolic, graphic, and written representations of circles and ellipses. 
- Translate between different forms of equations of circles and ellipses. 
- Write proofs using various axiomatic systems and assess the validity of deductive arguments. 
- Write the equations of circles and ellipses in transformational form and as mapping rules to visualize and sketch graphs. 
- Demonstrate an understanding of the transformational relationship between a circle and an ellipse. 
- Apply properties of circles. 
- Solve problems involving the equations and characteristics of circles and ellipses. 
Prerequisites
        To be successful in this lesson, it would be helpful to know the following: 
        
        - How to write the equation of a circle with centre at the origin and given radius. 
- Have an understanding of transformations and what effect certain transformations have on the equations of the figures involved. 
- The use of mapping notation to describe transformations.