Matrices Lesson 8

Matrices - Recap Quiz 
Lesson 8
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This lesson contains 13 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 45 min

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Matrices - Recap Quiz 
Lesson 8

Slide 1 - Slide

What is the order of a 3x2 matrix?
A
3 rows and 2 columns
B
3 rows and 3 columns
C
2 rows and 3 columns
D
2 rows and 2 columns

Slide 2 - Quiz

When adding 2x2 matrices, what should be the sum of the elements in the first row and first column of the resulting matrix?
A
Product of corresponding elements
B
Difference of corresponding elements
C
Sum of corresponding elements
D
Average of corresponding elements

Slide 3 - Quiz

What does the order of a matrix indicate?
A
Product of rows and columns
B
Number of rows and columns
C
Sum of rows and columns
D
Difference between rows and columns

Slide 4 - Quiz

If a matrix has 4 rows and 5 columns, what is its order?
A
9
B
5x4
C
4+5
D
4x5

Slide 5 - Quiz

What is the result of adding the matrices:
2
3
4
1
A
[8 3]
B
[5 3]
C
[7 2]
D
[6 4]

Slide 6 - Quiz

When adding matrices, what is the requirement for their dimensions?
A
They must be of the same dimensions.
B
They must have different dimensions.
C
The dimensions do not matter.
D
They can have any dimensions.

Slide 7 - Quiz

What is the determinant of the 2x2 matrix


3
4
5
2
A
-14
B
20
C
7
D
11

Slide 8 - Quiz

How do you calculate the determinant of a 2x2 matrix?
A
a^2 + b^2
B
a + b - c - d
C
ad - bc
D
ab - cd

Slide 9 - Quiz

How do you find the inverse of a 2x2 matrix?
A
Multiply by determinant, change sign of b and c, divide by determinant
B
Divide by determinant, swap b and c, change sign of a and d
C
Swap a and d, change sign of b and c, divide by determinant
D
Swap b and c, change sign of a and d, multiply by determinant

Slide 10 - Quiz

What is the first step in solving simultaneous equations using matrices?
A
Solving for x
B
Finding the determinant
C
Write the equations in matrix form
D
Substituting values

Slide 11 - Quiz

Solve the simultaneous equations using the 2x2 matrix format for
x + y = 5
4x - y = 12
A
x = 3, y = 2
B
x = 1, y = 4
C
x = 2, y = 3
D
x = 4, y = 1

Slide 12 - Quiz

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Subject: Matrices - Lesson 8

Slide 13 - Slide