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3 votes
For which pairs of functions is f(g(x))=x?

A) f(x)=x^2 and g(x)=1/x
B) f(x)=2/x and g(x)=2/x
C) f(x)x-2/3 and g(x)=2-3x
D) f(x)1/2x-2 and g(x)=1/2x+2

2 Answers

5 votes
D and a are a good answer
User Usta
by
5.8k points
4 votes
The answer is B.
Hope that helps!
Good luck
For which pairs of functions is f(g(x))=x? A) f(x)=x^2 and g(x)=1/x B) f(x)=2/x and-example-1
User Pushkin
by
6.5k points