Coordinate Geometry - Equation of a Circle (GRE)
These lessons are part of a series of lessons for the quantitative reasoning section of the GRE revised General Test. In these lessons, we will learn how to graph and write the equations of circle.
Related Pages
Equation Of Circle Tutorial
Equation of a Circle
The graph of an equation of the form (x − a)2 + (y − b)2 = r2 is a circle with its center at the point (a, b) and with radius r.
This video looks at using equations of circles to find the center and the radius of a circle to graph it, as well as, writing an equation for a circle, given the center and radius, or a point on the circle. It includes four examples.
This video shows how to graph and write equations of circles.
| Check out our most popular games! | ||
|---|---|---|
 Fraction Concoction |
 Fact Family Game |
 Number Bond Garden |
 Online Addition Subtraction Game |
 Penguin Solitaire |
 Sawayama Solitaire |
 Ark Solitaire |
 Eldritch Invasion |
 Shenzhen Solitaire |
Check out more Solitaire games here.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.