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(x - 3)2 + (y + 7)2 = 121 what's the center of the circle

1 Answer

11 votes

Answer:

centre = (3, - 7 )

Explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

(x - 3)² + (y + 7)² = 121 ← is in standard form

with centre = (h, k ) = (3, - 7 )

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