pandaanimegirl252
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Write the standard equation of the circle with center (0, 1) passing through the point (4, 9).

A. x2 + (y + 1)2 = 40
B. (x − 1)2 − y2 = 80
C. x2 + (y − 1)2 = 80
D. (x + 1)2 + y2 = 40

Respuesta :

ItsDodo
the answer is C

explanation:

r² = (4-0)² + (9-1)² = 80

(x-0)² + (y-1)² = r²

x² + (y-1)² = 80

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