Question

Determine whether the inverse of f is a function. Then find the inverse.
f(x)=1/7x^3-3

Answer 1

In a function, for every x value there must be ONLY one y value. So for the inverse to be a function, for every y value there must be ONLY one x value. You can check this by looking at the graph of the function and seeing if there is anywhere where you can draw a horizontal line perpendicular to the y axis that intersects the function in more than one place. IF it does, it is not an inverse.

Answer 2

ok