Solve the problem.Find the equation of the sphere with center = (-9, -4, -1) and radius = .

A. (x - 9)2 + (y + 4)2 + (z + 1)2 =  
B. (x + 9)2 + (y - 4)2 + (z + 1)2 =  
C. (x + 9)2 - (y + 4)2 - (z + 1)2 =  
D. (x + 9)2 + (y + 4)2 + (z + 1)2 =  

Answer: D

Mathematics

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