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1 January, 00:02

What is the center and radius of the circle that has the equation (x + 7) ^ 2 + (y - 4) ^2 = 49? Explain.

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Answers (2)
  1. 1 January, 01:40
    0
    ( - 7, 4) and 7

    Step-by-step 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 + 7) ² + (y - 4) ² = 49, that is

    (x - ( - 7)) ² + (y - 4) ² = 7² ← is in standard form

    with centre = (h, k) = ( - 7, 4) and r = 7
  2. 1 January, 03:22
    0
    Step-by-step explanation:

    Center: (-7,4) (-7,4)

    Radius: 7
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