Question

Given the function f(x)=3x-1, and f^-1(x)=(x+1)/3 find its domain

Answer 1

both
\[f(x)\] and
\[f^{-1}(x)\] are polynomials. so they have domain all real numbers

Answer 2

as for the range, they are both lines, so the range is all real numbers as well

Answer 3

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