F(x)= (x+1)/2 g(x)= 2x-1

Show your work to prove that the inverse of f(x) is g(x).

Show your work to evaluate g(f(x)).

Please help! I don't understand how to prove that they're inverse of eachother.

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120