Determinants and Quadratic Equations

Determinants and Quadratic Equations

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to solve a 2x2 determinant and find the value of X. It begins by introducing the problem, which involves solving determinants on both sides of an equation. The tutorial then details the process of solving the determinant by multiplying elements on the principal diagonal and subtracting the product of the secondary diagonal. This leads to forming a quadratic equation, which is solved to find the roots, giving the possible values of X as 3 or 2. The video concludes with a summary of the solution.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main objective of the problem discussed in the video?

To calculate the area of a triangle

To solve a 2x2 determinant and find the value of X

To find the value of Y

To solve a 3x3 determinant

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the order of the determinants discussed in the video?

3x3

1x1

2x2

4x4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve a 2x2 determinant?

By adding all elements

By multiplying and subtracting diagonal elements

By dividing the elements

By adding the diagonal elements

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying the principal diagonal elements in the given problem?

21

5X

X^2

X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What equation is formed after calculating the determinant values?

X^2 - 5X = 6

X^2 + 5X = -6

X^2 - 5X = -6

X^2 + 5X = 6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of equation is X^2 - 5X + 6 = 0?

Quadratic equation

Exponential equation

Linear equation

Cubic equation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the factors of the quadratic equation X^2 - 5X + 6 = 0?

(X + 3)(X + 2)

(X - 3)(X - 2)

(X + 3)(X - 2)

(X - 3)(X + 2)

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the possible values of X obtained from the equation?

X = 1 or X = 3

X = 1 or X = 2

X = 3 or X = 4

X = 3 or X = 2