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Quadratic Function: Circle Equations
Circle equation:
(x - a)
2
+ (y - b)
2
= r
2
Center: (a, b)
radius: r
x
2
+ y
2
= 100
Center (0, 0) radius r = 10
(x - 5)
2
+ y
2
= 100
Center (5, 0) radius r = 10
(x - 5)
2
+ (y - 5)
2
= 100
Center (5, 5) radius r = 10
(x + 5)
2
+ y
2
= 100
Center (-5, 0) radius r = 10
(x + 5)
2
+ (y + 5)
2
= 100
Center (-5, -5) radius is 10
x
2
+ (y - 5)
2
= 100
Center (0, 5) radius r = 10
x
2
+ (y + 5)
2
= 100
Center (0, -5) radius r = 10