Answer:
1/5x+2
Explanation:
if ur doing it on khan academy this is the right answer
Since g(f(x))=x g ( f ( x ) ) = x , fâ1(x)=5x+2 f - 1 ( x ) = 5 x + 2 is the inverse of f(x)=5xâ2 f ( x ) = 5 x - 2 .
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