Let f(x) = 2x - 6. Solve f-1(x) when x = 2.
A) -5B) 4C) -2D) 7
f(x) = 2x - 6so, f-1(x) = (x+6)/2 when x =2 , f-1(2) = (2+6)/2 = 8/2 = 4Answer : (B)
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