Roots and multiplicity of a polynomial function

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Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the factored form of a polynomial with roots x=-2, x=5, and x=2/3?
Back
y=(x+2)(x-5)(3x-2)
2.
FLASHCARD QUESTION
Front
Which of the following is not a zero of the polynomial f(x)=-2x(3x+1)^2(x+7)^7?
Back
-2 is not a zero.
3.
FLASHCARD QUESTION
Front
What are the roots of the polynomial function y = (x + 2)(x - 7)^3?
Back
The roots are -2 and 7 with multiplicity 3.
4.
FLASHCARD QUESTION
Front
What are the zeros of the polynomial y = 3(x + 4)(x + 1)(x - 3)?
Back
The zeros are -4, -1, and 3.
5.
FLASHCARD QUESTION
Front
What does it mean for a zero to have multiplicity?
Back
Multiplicity refers to the number of times a particular root appears in the factored form of a polynomial.
6.
FLASHCARD QUESTION
Front
How do you determine the multiplicity of a root from a polynomial's factored form?
Back
The multiplicity of a root is determined by the exponent of the factor corresponding to that root.
7.
FLASHCARD QUESTION
Front
What is the relationship between the roots of a polynomial and its graph?
Back
The roots of a polynomial correspond to the x-intercepts of its graph.
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