Inverse

y = 3√x+1
y^3 = x + 1
x = y^3 - 1
-inverse-
y = x^3 - 1.

Choose B

Guest:

find the inverse of 3√x+1

a.x^3 +1
b.x^3 -1
c. (1/3)X +1
d.(1/3)x -3

I don't think this question makes sense.
You can find the reciprocal of 3√x+1 or
you can find the inverse function of y=3√x+1
But what does the inverse of 3√x+1 mean? Beats me.

Our guest has found the inverse function of y=(x+1) ^1/3
Is that what you wanted???