Respuesta :

Answer:

  (x - 2)² + (y - 1)² = 9

Step-by-step explanation:

The standard form equation of a circle with center (h, k) and radius r is ...

  (x -h)² +(y -k)² = r²

Filling in (h, k) = (2, 1) and r = 3, you have ...

  (x -2)² +(y -1)² = 9