What is the inverse function of $f(x) = 4/(x + 2)$ and what is the domain and range?

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Answer 1 · 2015-09-15T01:31:45

Refer to explanation

We have that

$y=4/(x+2)=>x+2=4/y=>x=4/y-2$

hence $y^-1=4/x-2$

the domain is $R-{0}$ and the range is $R-{2}$

What is the inverse function of f(x) = 4/(x + 2)f(x) = 4/(x + 2) and what is the domain and range?