Writing Polynomials given Zeros/Roots

Flashcard
•
Mathematics
•
10th - 12th Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a polynomial?
Back
A polynomial is a mathematical expression consisting of variables (or indeterminates) raised to non-negative integer powers and coefficients, combined using addition, subtraction, and multiplication.
2.
FLASHCARD QUESTION
Front
What does it mean for a polynomial to have zeros/roots?
Back
Zeros or roots of a polynomial are the values of the variable that make the polynomial equal to zero.
Tags
CCSS.HSF-IF.C.7C
3.
FLASHCARD QUESTION
Front
If a polynomial has a zero at x = r, what can be said about the factor of the polynomial?
Back
If x = r is a zero of the polynomial, then (x - r) is a factor of the polynomial.
Tags
CCSS.HSA.APR.B.2
4.
FLASHCARD QUESTION
Front
What is the relationship between real and imaginary roots of polynomials?
Back
Imaginary roots of polynomials always come in conjugate pairs. If a + bi is a root, then a - bi is also a root.
Tags
CCSS.HSN.CN.C.9
5.
FLASHCARD QUESTION
Front
How do you write a polynomial given its zeros?
Back
To write a polynomial given its zeros, multiply the factors corresponding to each zero. For example, if the zeros are r1, r2, and r3, the polynomial is P(x) = k(x - r1)(x - r2)(x - r3), where k is a constant.
Tags
CCSS.HSA.APR.B.3
6.
FLASHCARD QUESTION
Front
What is the degree of a polynomial?
Back
The degree of a polynomial is the highest power of the variable in the polynomial expression.
7.
FLASHCARD QUESTION
Front
What is the least degree polynomial with given zeros?
Back
The least degree polynomial with given zeros is the polynomial formed by multiplying the factors corresponding to each zero, without any repeated factors.
Tags
CCSS.HSF-IF.C.7C
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