Find f-1(x) for the following one-to-one function f.f = {(2, 4), (5, 7), (3, 6), (8, 1)}
A. f-1 = {(4, 2), (7, 5), (6, 3), (1, 8)}
B. f-1 = {(-2, -4), (-5, -7), (-3, -6), (-8, -1)}
C. f-1 = {(-4, 2), (-7, 5), (-6, 3), (-1, 8)}
D. f-1 = {(2, -4), (5, -7), (3, -6), (8, -1)}
Answer: A
Mathematics
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