Question

circunferencia

c=? r=?
x² + y²+6x+y-63/4=0

urgente porfavor

Answer 1

x² + y²+6x+y-63/4=0
x² +6x+y²+y=63/4
Completo cuadrados
x² +6x+(6/2)² +y² +y+(1/2)² =63/4+(6/2)² +(1/2)² 
x² +6x+9 +y² +y+1/4 =63/4+9 +1/4 
(x+3)² + (y+1/2)² = 25

(x-h)² + (y-k)² = r² 
(x-(-3))² + (y-(-1/2))² = 5² 

Centro es: (-3,-1/2)
Radio es = 5