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linear fit [(0, 455), (8, 485), (12, 515), (15, 501), (17, 520), (26, 530), (36, 545), (40, 565)]
linear fit [(0, 455), (8, 485), (12, 515), (15, 501), (17, 520), (26, 530), (36, 545), (40, 565)]
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