Let H be the hyperplane through the points. Find a linear functional f and a real number d such that 

A. f(x1, x2, x3) = x1 + 9x2 + 4x3, d = 14
B. f(x1, x2, x3) = -2x1 + 9x2 + x3, d = 8
C. f(x1, x2, x3) = 8x1 + 2x2 + 4x3, d = 14
D. f(x1, x2, x3) = x1 + x2 + x3, d = 


Answer: A

Mathematics

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