How to Find the zeros of a quadratic function - box method - quadratic function

How to Find the zeros of a quadratic function - box method - quadratic function

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to find the zeros of a quadratic function algebraically. It begins with an introduction to the problem and the concept of zeros. The teacher discusses the challenges of solving equations with both X and X squared terms and introduces factoring techniques, including the diamond method. The tutorial demonstrates how to create binomials and find possible zeros, concluding with a verification of the solutions.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the zeros of a function algebraically?

Integrate the function

Differentiate the function

Set the function equal to zero

Graph the function

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it challenging to solve the equation directly when both x and x^2 are present?

Because they are not real numbers

Because they cancel each other out

Because they require different operations

Because they are on the same side of the equation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the diamond method in solving quadratic equations?

To integrate the equation

To graph the equation

To organize factors for easier solving

To differentiate the equation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the diamond method, what do you need to find that multiplies to give -48 and adds to give 22?

Two functions

Two variables

Two numbers

Two equations

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two binomials formed after factoring the quadratic equation?

3x + 8 and x - 2

3x - 2 and x + 8

3x - 8 and x + 2

3x + 2 and x - 8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the possible zeros of the function after solving the factored equation?

8 and 2/3

-8 and -2/3

-8 and 2/3

8 and -2/3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you verify if the found zeros are correct?

By differentiating the function

By graphing the function

By integrating the function

By plugging them back into the original equation