1. The problem is to find the derivative $y'$ of a function $y$. 2. To find $y'$, we need the explicit form of the function $y=f(x)$, which is not provided. 3. The derivative $y'$ represents the rate of change of $y$ with respect to $x$ and is found using differentiation rules. 4. Without the function $y$, we cannot compute $y'$. 5. Please provide the function $y$ to proceed with finding $y'$.