Question

Find center and radius of circle x2 + y2 – 6x – 8y = 0.​

Answer 1

Answer:Centre=(3, 4) radius=√3^2+4^2-0=5

Step-by-step explanation:centre is -

{-(-6/2)},it's the Abscissa, {-(-8/2) } is ordinate,

Answer 2

Answer:

${x}^{2} + {y}^{2} - 6x - 8y = 0 \: so \: {x}^{2} - 6x + 9 + {y}^{2} - 8y + 16 = 25. \: i.e \: (x - 3) {}^{2} + (y - 4) {}^{2} = 5 {}^{2} \:$

Hence Center (3,4) & Radius=5