Respuesta :

choixongdong

Equation of a circle:

(x - h)^2 + (y - k)^2 = r^2


In this case:

center (2,7) and radius 4 so h = 2, k = 7 and r = 4

Equation:

(x - 2)^2 + (y - 7)^2 = 4^2

(x - 2)^2 + (y - 7)^2 = 16


Hope it helps.

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