Question

46. Find the center and radius of circle x2 + y2 + 8x + 10y - 8 = 0.​

Answer 1

Answer:

co-ordinate of centre is (-4,-5)

Step-by-step explanation:

we know the general expression of circle :

x

$x^{2} + y^{2} + 2gx + 2fy + c = 0 \\ then \\ r = \sqrt{ {g}^{2} + {f}^{2} - c } \: \: \: \: and \: center = ( - g.- f)$

So using this formula,

r=7