Respuesta :

tramserran

Answer: d) (-1, 0); 2

Step-by-step explanation:

The equation of a circle is: (x - h)² + (y - k)² = r²

  • (h, k) is the center
  • r is the radius

(x +1)² + y² = 4 can be rewritten as:  (x - (-1))² + (y - 0)² = 2²

→ (h, k) = (-1, 0)

→ r = 2

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