Given the function, ƒ(x) = (1/x+1) - 5, choose the correct transformation.

If we are to transform this to the inverse function, first we replace f(x) with y,
                                  y = (1/x+1) - 5
Then, we replace all the y's with x and all the x's with y. Such that,
                                  x = (1/y+1) - 5
Then, we solve for the value of y in terms of x in our newly generated equation.
                                  x + 5 = 1/y+1
                                (x + 5)(y +1) = 1
                                     y + 1 = 1/(x +5)
                                       y = 1/(x + 5) - 1
So, the inverse function,
                                  y = f⁻¹(x) = 1/(x + 5) - 1

C. expression because any expression or equation may contain more than one variable

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