§9-3 Matrix Operations. Matrix Notation The matrix has 2 rows and 3 columns.

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Presentation transcript:

§9-3 Matrix Operations

Matrix Notation

The matrix has 2 rows and 3 columns

Equality of Matrices

Matrix Operations AdditionSubtraction Scalar MultiplicationScalar Multiplication

Matrix Addition and Subtraction

Properties of Matrix Addition

Scalar Multiplication

Properties of Scalar Multiplication

Solving a Matrix Equation Plug in the matrices.

Matrix Multiplication

1 st Row 1 st Column 1 st Row 2 nd Column 2 nd Row 1 st Column 2 nd Row 2 nd Column

Matrix Multiplication For the product of two matrices to be defined, the number of columns of the first matrix must equal the number of rows of the second matrix. These must be equal

Multiplying Matrices

“ ” Pg #1-8 all, #9-35 EOO EOO – every other oddEOO – every other odd For example, you would work 9, 13, 17, …For example, you would work 9, 13, 17, … Homework