

Matrices Lesson
Presentation
•
Mathematics
•
8th - 9th Grade
•
Hard
Joseph Anderson
FREE Resource
7 Slides • 4 Questions
1
Matrices
Welcome to the Matrix

2
What is a matrix?
A matrix is a rectangular form of data.
3
Matrices
Are used by Netflix and Hulu to recommend videos for you
Help solve higher Algebra problems such as Quadratics.
Are used in computer graphics and video games.
4
Matrices
Can have either brackets of parenthesis.
5
A Matrix is comprised of....
Rows
Columns
Elements
6
Size of a Matrix
The size is determined by the number of rows x number of columns. Only like size matrices can be added or subtracted from one another.
7
Multiple Choice
What is the size of the matrix below? Always do Rows x Columns.
3 x 4
4 x 3
8
Multiple Choice
What is the size of the matrix below?
0 x 1
1 x 0
3 x 3
3 x 0
9
Identifying Elements in a Matrix
We use subscript to identify the location of an element in a matrix. It is the name of the matrix followed by row x column. Rows are top to bottom and columns are left to right.
10
Multiple Choice
Which element is located in A23?
-3
5
-9
2
11
Multiple Choice
What is the location of 5?
A12
A21
A25
A13
Matrices
Welcome to the Matrix

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