Solve for the Zeros Using Quadratic Formula

Solve for the Zeros Using Quadratic Formula

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial covers the analysis of a polynomial function, starting with identifying its degree and leading coefficient. It explains how these elements affect the graph's behavior. The tutorial then moves on to finding intercepts and factoring the polynomial. It demonstrates the use of the quadratic formula to find zeros and discusses the concept of multiplicity, explaining how it affects the graph's interaction with the x-axis. The session concludes with a summary of the findings and an invitation for questions.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the degree of the polynomial function F(x) = 3x^4 - 12x^2 + 3x?

2

3

4

5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the leading coefficient test help determine about a polynomial graph?

The number of zeros

The end behavior

The y-intercept

The x-intercept

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the intercepts of a polynomial function?

Use the quadratic formula

Set the function equal to zero

Find the derivative

Graph the function

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is NOT suitable for solving a third-degree polynomial?

Graphing

Completing the square

Quadratic formula

Factoring

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the quadratic formula used for?

Finding the degree of a polynomial

Determining the leading coefficient

Solving quadratic equations

Factoring polynomials

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the multiplicity of a zero if the factor is unique?

2

1

3

0

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following pairs of zeros are unique?

2 and 2

2 + sqrt(3) and 2 - sqrt(3)

3 and 3

4 and 4