To find the critical points of a function, we need to follow these steps:

1. Find the derivative of the function, $f'(x)$, to determine where the slope of the tangent line is zero.
2. Set the derivative equal to zero and solve for $x$. These values of $x$ are potential critical points.
3. Check for undefined points in the derivative as these may also be critical points.

Please provide the specific function you'd like to find the critical points for. You can also upload a photo of the function if it's more convenient.