If f is one-to-one, find an equation for its inverse.f(x) = -
, x ? 5
A. f-1(x) = 
, x ? 5
B. f-1(x) = -
, x ? 0
C. f-1(x) = 
, x ? 0
D. f-1(x) = 
, x ? 0
Answer: D
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