In this lesson we are going to go over equations of circles. First we'll see how the standard equation of a circle looks like, with center (h,k) and a radius of r units. You'll learn how to recognize the center and the radius of a circle by simply looking at its equation. However, you won't always be able to do that. Sometimes you'll have to do some work to get the equation to its standard form. You'll get to practice that through the extra examples. You'll learn how to solve problems that involve writing an equation of a circle based on the given information.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Equations of Circles
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.