B)
Step-by-step explanation:
Plug each coordinate into all the functions to confirm their authenticities:
[β3, β16]
β16 = β18 + 2 β
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[8, 50]
50 = 48 + 2 β
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[1, 8]
8 = 6 + 2 β
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[β2, β10]
β10 = β12 + 2 β
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[4, 26]
26 = 24 + 2 β
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