Math Problem Statement
Solution
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Given Information:
The equation provided is . The goal is to find several characteristics of this polynomial:
-
X-Intercepts: The roots of the polynomial are already calculated as:
- (from solving ).
-
Y-Intercept: To find the -intercept, substitute into : So, the -intercept is .
-
Degree of Polynomial: The degree of the polynomial is determined by the highest power of when expanded. Here, has three linear factors (), so the degree is:
-
End Behavior: Since this is a cubic polynomial (odd degree) with a positive leading coefficient (from ), the end behavior is:
- As , .
- As , .
-
Turning Points: A degree-3 polynomial can have at most turning points. The exact coordinates of the turning points require finding the critical points (derivative set to zero). However, they are not computed explicitly on this sheet.
Summary of Answers:
- X-Intercepts: .
- Y-Intercept: .
- Degree of Polynomial: 3.
- End Behavior:
- : .
- : .
- Turning Point: Needs further calculation (critical points).
Do you want me to compute the turning points or provide a detailed graph explanation?
Additional Related Questions:
- What is the expanded form of ?
- How do you find the critical points of a cubic function?
- How can you use the end behavior to sketch the graph of this function?
- Why does a cubic polynomial have at most two turning points?
- How do you determine the leading coefficient of a polynomial in factored form?
Tip: When finding turning points, always compute the first derivative and solve to locate the critical points.
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Math Problem Analysis
Mathematical Concepts
Polynomial Functions
Factored Form
Intercepts
End Behavior
Turning Points
Formulas
Factored form of polynomial: f(x) = (x - r1)(x - r2)...
Y-intercept: f(0)
Degree of polynomial: Sum of degrees of factors
End behavior of polynomials: Determined by leading term
Theorems
Fundamental Theorem of Algebra
Suitable Grade Level
Grades 9-12
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