B)
Step-by-step explanation:
Plug each coordinate into all the functions to confirm their authenticities:
[−3, −16]
−16 = −18 + 2 ☑
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[8, 50]
50 = 48 + 2 ☑
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[1, 8]
8 = 6 + 2 ☑
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[−2, −10]
−10 = −12 + 2 ☑
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[4, 26]
26 = 24 + 2 ☑
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