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15 July, 06:23

Find the center and radius of the circle. (x - 1) 2 + (y + 3) 2 = 49

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  1. 15 July, 06:52
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    Actually the formula is

    (x-a) ^2 + (y-b) ^2 = r^2

    so the center of this circle is (a, b) = (1, - 3)

    and radius of this circle is 7.
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