Question

Determine a coordenadas do centro e o raio da circunferencia

A)(x -1/3)² + (y-2/3)²=1

Answer 1

(x-a)² + (y-b)² = r²
(x-1/3)² + (y-2/3)² = 1
C = (1/3, 2/3)
r² = 1 --> r = \/1 --> r = 1