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Practice: Equation of a Sphere

Does the equation 2𝑥+2𝑦+2𝑧+4𝑥+4𝑦+4𝑧44=0 describe a sphere? If so, find its radius and center.

  • AYes, it describes a sphere. Its radius is 5 and its center is at (1,1,1).
  • BYes, it describes a sphere. Its radius is 11 and its center is at (1,1,1).
  • CYes, it describes a sphere. Its radius is 5 and its center is at (1,1,1).
  • DYes, it describes a sphere. Its radius is 11 and its center is at (1,1,1).
  • ENo, it does not describe a sphere.
06:25

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