1. Introduction to Matrices
Ch 4: Matrices
Lesson 1

2. Matrix
Matrix: is a rectangular array of variables or constants in horizontal rows and vertical columns, usually enclosed in brackets.
In a matrix each number or data is organized in a position for purpose.
Element: each value in a matrix
They are named by upper case letter
Each matrix has a dimension (rows x column)
See example

3. Special Matrices Row Matrix: a matrix with one row
Column Matrix: A matrix with only one column
Square Matrix: A matrix with same number of rows and columns
Zero Matrix: A matrix with each element is 0.
Equal Matrices: have the same dimensions and all elements in both matrices have corresponding element.
See example

4. Example
Solve Equations involving Matrices
Solve using Substitution