Matrices Continued… Guiding Question: How can we use matrices to find the value of inventory?

Slides:

Advertisements

Similar presentations

Advertisements

2.3 Modeling Real World Data with Matrices

4-2 Multiplying Matrices Warm Up Lesson Presentation Lesson Quiz

Warm Up State the dimensions of each matrix. 1. [ ] 2. Calculate. 3. 3(–4) + ( – 2)(5) + 4(7) 4. ( – 3)3 + 2(5) + ( – 1)(12) 1  4 3  2 6 –11.

Section 4.2 – Multiplying Matrices Day 2

Matrix Multiplication To Multiply matrix A by matrix B: Multiply corresponding entries and then add the resulting products (1)(-1)+ (2)(3) Multiply each.

4.4 Matrices: Basic Operations. Addition and Subtraction of matrices To add or subtract matrices, they must be of the same order, mxn. To add matrices.

Table of Contents Matrices - Multiplication Assume that matrix A is of order m  n and matrix B is of order p  q. To determine whether or not A can be.

Fundamentals of matrices

EXAMPLE 1 Write a function rule

8.4 Matrix Operations Day 1 Thurs May 7 Do Now Solve X – 2y = -6 3x + 4y = 7.

4.2 Operations with Matrices Scalar multiplication.

Warm-Up 1) 2) 3) 4) Name the dimensions. Quiz – you may not use your notes 1) 2) 3) 4) Name the dimensions Check your work!! Watch out for careless errors.

Warm Up. Multiplying Matrices 6.2 part 2 **Multiply rows times columns. **You can only multiply if the number of columns in the 1 st matrix is equal.

In Lesson 4-2, you multiplied matrices by a number called a scalar

Holt Algebra Multiplying Matrices In Lesson 4-1, you multiplied matrices by a number called a scalar. You can also multiply matrices together. The.

If A and B are both m × n matrices then the sum of A and B, denoted A + B, is a matrix obtained by adding corresponding elements of A and B. add these.

3.6 – Multiply Matrices The product of two matrices A and B is defined provided the number of columns in A is equal to the number of rows in B. If A is.

4.3 Matrix Multiplication 1.Multiplying a Matrix by a Scalar 2.Multiplying Matrices.

Matrices: Basic Operations and Their Properties

How to Multiply Two Matrices. Steps for Matrix Multiplication 1.Determine whether the matrices are compatible. 2.Determine the dimensions of the product.

Matrix Algebra Section 7.2. Review of order of matrices 2 rows, 3 columns Order is determined by: (# of rows) x (# of columns)

8.2 Operations With Matrices

Matrix Operations.

Chapter 4 Section 2: Multiplying Matrices. VOCABULARY The product of two matrices A and B is DEFINED provided the number of columns in A is equal to the.

Multiplying Matrices Lesson 4.2. Definition of Multiplying Matrices The product of two matrices A and B is defined provided the number of columns in A.

Objectives: Students will be able to… Multiply two matrices Apply matrix multiplication to real life problems.

Lesson 4.3Multiplying Matrices Matrix Multiplication Property [A][B] is possible iff the number of columns in [A] match the rows in [B]. Possible Result.

4.2 Matrix Multiplication Objectives: Multiply 2 matrices. Use matrix multiplication to solve mathematical and real-world problems. Standard:

Section 4.3 – Multiplying Matrices. MATRIX MULTIPLICATION 1. The order makes a difference…AB is different from BA. 2. The number of columns in first matrix.

Section – Operations with Matrices No Calculator By the end of this lesson you should be able to: Write a matrix and identify its order Determine.

4-3 Matrix Multiplication Objectives: To multiply by a scalar To multiply two matrices.

3.6 Multiplying Matrices Homework 3-17odd and odd.

12-2 MATRIX MULTIPLICATION MULTIPLY MATRICES BY USING SCALAR AND MATRIX MULTIPLICATION.

Matrix Operations McDougal Littell Algebra 2 Larson, Boswell, Kanold, Stiff Larson, Boswell, Kanold, Stiff Algebra 2: Applications, Equations, Graphs Algebra.

4.3 Multiplying Matrices Dimensions matching Rows times Columns.

MATRIX MULTIPLICATION

Multiply matrices Use the properties of matrix multiplication.

Matrix Operations McDougal Littell Algebra 2

4-2 Multiplying Matrices Warm Up Lesson Presentation Lesson Quiz

13.4 Product of Two Matrices

Warm-Up 3) 1) 4) Name the dimensions 2).

16 Multiplying Matrices Warm Up Lesson Presentation Lesson Quiz.

Umm Al-Qura University

4-3 Multiplying Matrices

Multiplying Matrices GSE Accelerated Pre-Calculus Keeper 2.

Matrix Multiplication

4-2 Multiplying Matrices Warm Up Lesson Presentation Lesson Quiz

6.2/6.3: Properties of Parallelograms

Multiplying Matrices.

AGENDA DG minutes.

Worksheet Key 12/1/2018 8:08 PM Multiply Matrices.

Objectives Multiply two matrices.

Multiplying Matrices.

5 minutes Warm-Up Multiply Matrix A times Matrix B.

Dimensions matching Rows times Columns

3.6 Multiply Matrices.

Linear Algebra Lecture 11.

Matrix A matrix is a rectangular arrangement of numbers in rows and columns Each number in a matrix is called an Element. The dimensions of a matrix are.

AGENDA DG minutes.

Lesson 2: Multiplying Matrices

Multiplying Matrices.

Lines, rays and line segments

Multiplying Matrices.

Matrix Multiplication Sec. 4.2

Matrices - Operations MULTIPLICATION OF MATRICES

Multiplying Matrices.

Presentation transcript:

Matrices Continued… Guiding Question: How can we use matrices to find the value of inventory?

Matrix Product The product of two or more matrices Rules: – Matrices A and B can be multiplied ONLY if the number of columns in A equals the number of rows in B. (the inner dimensions must equal) – The product of an m x n and n x p matrix is an m x p matrix. (the outside dimensions will be the product) An m x n matrix A can be identified by using the notation A mxn

Is the product defined? P 2x5 R 4x3 Q 5x3 S 4x5 Use the matrices above to tell whether the product is defined: 1.PQ2. RS3. QP 4. SR 5. SQ6. RQ

Multiplying Matrices

1.AB (together) 2.BA 3.AC 4.BC 5.CA

Step By Step Finding the Product

AB continued

Two stores held sales on their videos and DVDs, with prices as shown. Use the sales data to determine how much money each store brought in from the sale on Saturday. VideosDVDs Video World$8.95$11.95 Star Movies$7.50$12.50 Using Matrices for Inventory Total Sales FriSatSun Videos DVDs

Step By Step 1. Display the data in 2 matrices 2. Multiply the matrices to find the number of sales. Where do the Saturday Sales occur?

Homework :) Page 257: 2-14 even Have a great day!