Question

1.De as coordenadas centro e o raio das circunferencias representadas pelas equaçoes: b) (x+2)2 + (y+6)2=5 c) (x-2)2 + y2=4​

Answer 1

x) (x-a)² + (y-b)²= r²

↓. ↓. ↓

b) (x+2)2 + (y+6)2=5

a=-2, b=-6, r=√5

x) (x-a)² + (y-b)²= r²

↓. ↓. ↓

c) (x-2)2 + (y-0)2=4

a=2, b=0, r=2