Find the Center and Radius of the Sphere $$x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 8 x - 2 y + 8 z = 3$$

question 155

Multiple Choice

Find the center and radius of the sphere.
- $$x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 8 x - 2 y + 8 z = 3$$

• A) C(4, 1, 4), a = 6
• B) C(4, 1, -4), a = 6
• C) C(4, 1, -4), a = 36
• D) C(-4, -1, 4), a = 6