Polynomials and Their Properties
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Questions and Answers

What is the leading term of the polynomial $6x^3 + 2x^2 - 5$?

  • $-5$
  • $2x^3$
  • $6x^3$ (correct)
  • $2x^2$

What is the degree of the polynomial $4x^5 - 3x^2 + 7x - 8$?

  • 3
  • 5 (correct)
  • 2
  • 7

Which statement is true regarding synthetic division?

  • It is used when the divisor is a polynomial of degree 2.
  • It always produces a remainder of zero.
  • It simplifies the division process for polynomials. (correct)
  • It can only be used with numerical coefficients.

According to the Remainder Theorem, what is the remainder when dividing a polynomial $P(x)$ by $(x - c)$?

<p>$P(c)$ (A)</p> Signup and view all the answers

What does it indicate if a polynomial has an odd degree with a positive leading coefficient?

<p>The graph rises to the right and falls to the left. (C)</p> Signup and view all the answers

Which of the following describes the constant term in the polynomial $3x^4 + 0x^3 + 7x - 5$?

<p>$-5$ (B)</p> Signup and view all the answers

What is the factor theorem used for?

<p>To find possible roots of a polynomial. (A)</p> Signup and view all the answers

In polynomial division using long division, what does 'B' stand for in the DMSBR algorithm?

<p>Bring down the next term. (C)</p> Signup and view all the answers

Flashcards

Leading Term

The term in a polynomial with the highest exponent.

Leading Coefficient

The number in front of the leading term.

Degree of a Polynomial

The highest exponent in a polynomial.

Remainder Theorem

Dividing a polynomial by (x-c), the remainder is the value of the polynomial at x=c.

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Factor Theorem

If a polynomial has a root c, then (x-c) is a factor of the polynomial.

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Odd Degree Polynomial

A polynomial with an odd-number exponent.

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Even Degree Polynomial

A polynomial with an even-number exponent.

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End Behavior

Describes the trend of a polynomial graph's right and left ends.

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Study Notes

Polynomials

  • Polynomials are algebraic expressions using variables with whole number exponents and coefficients.

Key Concepts

  • Leading Term: The term with the highest exponent.
  • Leading Coefficient: The coefficient of the leading term.
  • Degree: The highest exponent of the variable.
  • Constant Term: The term without a variable.

Equations/Functions

  • An equation sets two expressions equal.
  • A function relates input to output.

Polynomial Division

  • Long Division (DMSBR): Divide, Multiply, Subtract, Bring Down, Repeat.
  • Synthetic Division (DMAD): Divide, Multiply, Add, Drop, and Repeat.

Theorems

  • Remainder Theorem: When dividing a polynomial by , the remainder is.
  • Factor Theorem: If then is a factor of.
  • Rational Root Theorem: Possible roots of are , where is a factor of the constant term and is a factor of the leading coefficient.

End Behavior

  • Odd Degree:
    • Positive Leading Coefficient: Rises right, falls left
    • Negative Leading Coefficient: Falls right, rises left
  • Even Degree:
    • Positive Leading Coefficient: Rises on both ends.
    • Negative Leading Coefficient: Falls on both ends.

Graphing Polynomials

  • Use the leading term to determine the general shape.
  • Use the degree to identify possible turning points.
  • Use roots and their multiplicities to find where the graph crosses or touches the x-axis.

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Description

Test your knowledge on polynomials, their key concepts, and division methods. This quiz covers leading terms, coefficients, theorems, and end behavior of polynomials. Prepare to engage with polynomial equations and functions in a comprehensive way.

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