Download presentation

Presentation is loading. Please wait.

Published byKaitlyn Speed Modified over 3 years ago

1
Warm-Up (Over 4.5) [1]Evaluate Calculator Free: [2]Find the area of a triangle whose vertices are at (9, 0) (-3, 10) and (5, -6).

2
Warm-Up (Chapter 4 RV) [1] [2] [3]Jim invested $3000 into three 3 accounts at 5%, 8%, and 10% respectively. After one year the interest gained was $255. If the he invested $500 more in the 8% than the 5% how much did he invest in each? (-3.8, 1.4) X + Y + Z = 3000 X = 5% Y = 8% Z = 10%.05X +.08Y +.10Z = 255 Y = X + 500 X = $500 Y = $1000 Z = $1500

3
Lesson 4.7Identity and Inverse Matrices 2 x 2 Identity 3 x 3 Identity Identity Property of Multiplication: Inverse Property of Multiplication: If the product of two matrices is an identity matrix, then the two matrices are inverses. (Not all matrices have an inverse)

4
Finding Inverse of a 2x2 Matrix Where ad-bc does not equal 0. If determinant (ad-bc) =0 then no inverse. NOTE: the value of ad-bc is the determinant of A

5
Practice finding the Inverse (by hand) 1. 3. 2. 4.

6
Example 1Finding an Inverse (Calculator Active) Note:Not all matrices have an inverse. A SINGULAR MATRIX error message entails there is no inverse. a) b)

7
Example 2Verifying Inverses (Calculator Active) a) b)

Similar presentations

OK

Warm Up Multiple the matrices. 1. Find the determinant. 2. 3. –1 0.

Warm Up Multiple the matrices. 1. Find the determinant. 2. 3. –1 0.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on india vision 2020 Ppt on leadership in nursing Run ppt on android Ppt on barack obama leadership characteristics Ppt on power grid failure video Ovary anatomy and physiology ppt on cells Ppt on types of houses in india Ppt on mhd power generation Ppt on modern technology in education Download ppt on cell organelles and their functions