Math Problem Statement
Solution
To analyze this question and solve it step by step:
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Analyze the graph:
- The polynomial graph crosses the x-axis at and . These are real roots of the polynomial.
- At , the graph bounces off the x-axis, indicating a double root. At , the graph crosses the x-axis, indicating a single root.
- The polynomial's degree is determined by the number and types of roots. A double root at and a single root at give a minimum degree of 3.
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Analyze the options:
- (A) : This has roots at and , but both are single roots. This doesn't match the graph because is a double root.
- (B) : This has roots at and , which doesn't match the graph's roots.
- (C) : This has a single root at and a double root at . This matches the graph perfectly.
- (D) : This has a double root at and , which doesn't match the graph.
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Conclusion:
The correct answer is (C) .
Would you like further clarification? Here are some related questions to deepen understanding:
- How can you determine the degree of a polynomial from its graph?
- What is the difference between a single and a double root?
- How do the multiplicities of roots affect the shape of a graph?
- What happens if a root has a multiplicity of 3 or higher?
- How can you reconstruct a polynomial from its graph?
Tip: To quickly identify root multiplicities, look for how the graph interacts with the x-axis—crossing indicates odd multiplicity, while bouncing indicates even multiplicity.
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Math Problem Analysis
Mathematical Concepts
Polynomial functions
Roots and their multiplicities
Graphing
Formulas
General polynomial equation: p(x) = (x - r1)^m1 (x - r2)^m2 ...
Multiplicity and root behavior
Theorems
Fundamental Theorem of Algebra
Suitable Grade Level
Grades 10-12
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