Question

Find the center and radius of the circle whose equation is x 2 + y 2 - 6x - 2y + 4 = 0

Answer 1

`{ \tt{ {x}^(2) + {y}^(2) - 6x - 2y + 4 = 0 }}`

Center:

`{ \tt{(3, \: 1)}}`

Radius:

`{ \tt{radius = \sqrt{ {g}^(2) + {f}^(2) - c } }} \\ = √(36 + 4 - 4) \\ = 6 \: units`