Critical Number 688A83

1. **State the problem:** We need to find the critical number(s) of a function. Critical numbers occur where the derivative is zero or undefined. 2. **Formula and rules:** Given a function $f(x)$, find its derivative $f'(x)$. Critical numbers satisfy: $$f'(x) = 0 \quad \text{or} \quad f'(x) \text{ is undefined}$$ 3. **Intermediate work:** Since the function is not provided, we cannot compute $f'(x)$ or solve for critical numbers. 4. **Explanation:** To find critical numbers, you must first have the function $f(x)$. Then differentiate it to get $f'(x)$, set $f'(x)=0$, and solve for $x$. Also check where $f'(x)$ does not exist. 5. **Final answer:** Please provide the function $f(x)$ to find its critical numbers.