Question

X^2+(y-5)=25 find the center of the circle

Answer 1

${x}^{2} + (y - 5) = 25 \\ {x }^{2} + y = 25 + 5 \\ {x}^{2} + y = 30 \\ {x}^{2} + y = \sqrt{30}$
centre: (0,0)
Radius: square root of 30