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17 July, 13:33

What is the center of the circle represented by this equation? (x - 7) 2 + (y + 4) 2 = 9 A) (4, 9) B) (2, 3) C) (-7, 9) D) (7, - 4)

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  1. 17 July, 17:13
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    (7, - 4)

    Step-by-step explanation:

    The equation of a circle in standard form is

    (x - h) ² + (y - k) ² = r²

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

    (x - 7) ² + (y + 4) ² = 9 ← is in standard form

    with (h, k) = (7 - 4) ← centre
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