At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) such that x ? 0 and y + z ? 0
B. All (x, y, z) such that x - y - z ? 0
C. All (x, y, z)
D. All (x, y, z) in the first octant
Answer: C
Mathematics
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y = 5x - 8.8
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