What is the inverse of f(x) =x^3 +1?

Answer 1

To do find the inverse of the function, switch the x and y, then solve for the new y:

y = x^3 + 1

becomes

x = y^3 + 1

subtract 1 from each side

x - 1 = y^3

take the cube root of each side (and switch left and right to get things looking normal again)

y = (x-1)^(1/3)

you're done