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Math Help - Find Equation of Sphere

  1. #1
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    Find Equation of Sphere

    Find equation of a sphere with radius r and center P_0.

    NOTE: P_0 is read "P sub zero."

    r = 1; P_0 = (3, 1, 1)
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  2. #2
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    Quote Originally Posted by magentarita View Post
    Find equation of a sphere with radius r and center P_0.

    NOTE: P_0 is read "P sub zero."

    r = 1; P_0 = (3, 1, 1)
    You are supposed to know the general equation of a sphere with the center C and the radius r:

    (x-x_C)^2+(y-y_C)^2+(z-z_C)^2=r^2

    All values are known - so where is the problem?
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  3. #3
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    ok..........

    Quote Originally Posted by earboth View Post
    You are supposed to know the general equation of a sphere with the center C and the radius r:

    (x-x_C)^2+(y-y_C)^2+(z-z_C)^2=r^2

    All values are known - so where is the problem?
    Are you saying to plug and chug with what's been given?
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  4. #4
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    Quote Originally Posted by magentarita View Post
    Are you saying to plug and chug with what's been given?
    Correct - nothing more.

    And that's the reason why I can't believe that you have had difficulties with this problem.
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  5. #5
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    I.....

    Quote Originally Posted by earboth View Post
    Correct - nothing more.

    And that's the reason why I can't believe that you have had difficulties with this problem.
    I simply rushed through it. You are right. The question is easy.
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