Question Given that the polynomial \( f(x) \) has degree 9 , which of the following most accurately describes the number of turning points of \( f(x) \) ? Select the correct answer below. The graph of \( f(x) \) has at most 10 turning points. The graph of \( f(x) \) has at most 9 turning points. The graph of \( f(x) \) has at most 8 turning points. The graph of \( f(x) \) has at least 8 turning points. The graph of \( f(x) \) has at least 10 turning points. The graph of \( f(x) \) has at least 9 turning points.
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The graph of a polynomial has turning points where it changes direction, and the maximum number of turning points is one less than the degree of the polynomial. Since \( f(x) \) has a degree of 9, it can have at most 8 turning points. This means the correct answer is that the graph of \( f(x) \) has at most 8 turning points. Feeling curious? The maximum number of turning points can show us a lot about the behavior of polynomials. For a degree 9 polynomial, you have the potential for a variety of wavy paths through the x-y plane—maybe a roller coaster ride with several ups and downs! So the more the degree, the more exciting, right?