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27 July, 15:40

The equation of a circle is given below. Identify the center and the radius. x ^ 2 + y ^ 2 + 8x - 4y + 11 = 0

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  1. 27 July, 16:36
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    Centre: (-4,2)

    Radius: 3

    Step-by-step explanation:

    h = 8/-2 = - 4

    k = - 4/-2 = 2

    (-4) ² + 2² - 11 = r²

    r² = 9

    r = 3
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