Algebra-2

Question Analysis
This question tests the student's understanding of critical points in polynomial functions, specifically that a critical point occurs where the first derivative is zero or undefined.

Key Concept Explanation
Critical points are essential in identifying potential relative extrema. They are points where the slope of the tangent line to the curve is zero (horizontal) or undefined (vertical).

Step-by-step Solution
1. Recall the definition of a critical point.
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