favicon
learning mathematics at the website of mathtestpreparation.com
back to math help

Quadratic Function: Circle Equations

Circle equation:
(x - a)2 + (y - b)2 = r2
Center: (a, b)
radius: r
circle equation is x^2 + y^2 = 100, center is (0, 0), radius is 10
x2 + y2 = 100
Center (0, 0) radius r = 10
circle equation is (x - 5)^2 + y^2 = 100, center is (5, 0) and radius is 10
(x - 5)2 + y2 = 100
Center (5, 0) radius r = 10
circle equation is (x - 5)^2 + (y - 5)^2 = 100, its center is (5, 5) and radius is 10
(x - 5)2 + (y - 5)2 = 100
Center (5, 5) radius r = 10
circle equation is (x + 5)^2 + y^2 = 100, its center is (-5, 0) and radius is 10
(x + 5)2 + y2 = 100
Center (-5, 0) radius r = 10
circle equation is (x + 5)^2 + (y + 5)^2 = 100, its center is (-5, -5) and radius is 10
(x + 5)2 + (y + 5)2 = 100
Center (-5, -5) radius is 10
circle equation is x^2 + (y - 5)^2 = 100, its center is (0, 5) and radius is 10
x2 + (y - 5)2 = 100
Center (0, 5) radius r = 10
Circle equation is x^2 + (y + 5)^2 = 100, its center is (0, -5) and radius is 10
x2 + (y + 5)2 = 100
Center (0, -5) radius r = 10