Equation of a Circle | grade 10 | jensenmath.ca

In this lesson you will learn about the equation of a circle centred at the origin or any point (h,k). You will learn how to write the equation of a circle given the radius or a point on the circle. You will also learn how to determine if a point lies inside, outside, or on a circle. Finally, you will learn how to calculate the shortest distance from a point to a circle. This lesson corresponds to section 2.4 of the McGraw Hill Principles of Math 10 textbook. Go to jensenmath.ca for supporting materials.

0:00 - definitions and equations
3:11 - example 1, equation given radius
4:25 - example 2, given equation determine the radius
5:08 - example 3, equation given point
6:36 - example 4, inside outside or on circle
9:06 - example 5, equation of circle not centred at origin
10:15 - example 6, shortest distance from point to circle