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Math Help - Radius and Center

  1. #1
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    Radius and Center

    Find radius and center of the equations




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  2. #2
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    1)Add 16 to both sides x^2+8x+16 + 8 + y^2= 16 \implies (x +4)^2 + y^2 = (\sqrt{8})^2
    What is the radius and center?

    2)Multiply by 4 to get x^2+y^2 = 2^2.
    What is the radius and center?
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  3. #3
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    "y2" not in my question

    dear "y2" not in my question..........
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  4. #4
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    I have no idea what that means!
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  5. #5
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    help

    I mean y square is not in the equation
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