8th alg -l6.6--feb7
- 1. Lesson 66.notebook February 07, 2013 Assignment: 1>L6,6, pg. 372 373, #222 (evens) Due Thursday (2/14) 2>Checkpoint 6.4 6.5 Due Thursday (2/14) 3>Chapter 6 Test Thursday (2/21)
- 2. Lesson 66.notebook February 07, 2013 Lesson 6.6 WarmUp: Determine the best way to solve each system then solve it! 1) 3x + y = 3 4x + 2y = 14 2) y + 4x = 3 y = 4x 1 3) 4x + 2y = 10 5x 3y = 7 4) At a SJ basketball game, the team scored a total of 45 points. Some of the shots were 3 pts and some of the shots were 2 pts. Find out how many of each were made, if they made a total of 18 baskets. 5) Adult tickets are $15 and student tickets are $12. If a total of 11 tickets were bought and the cost was $156, how many of each type was bought?
- 3. Lesson 66.notebook February 07, 2013 Lesson 6.6: *matrix a rectangular arrangement of numbers in rows and columns enclosed in brackets. *element each number in a matrix *dimensions the number of rows and columns in a matrix [ 7 1 0 9 3 4 5 3 8 3 6 2 [ } rows } this is a 3 x 4 matrix columns 3 is row 2, column 3
- 4. Lesson 66.notebook February 07, 2013 *If 2 matrices have the same dimensions, they can be added or subtracted....if not, they are impossible! **Also, you can multiply a matrix by a constant called a scalar.....and is known as scalar multiplication.
- 5. Lesson 66.notebook February 07, 2013 Lesson 6.6 examples: Perform the indicated matrix operations. A) [ 8 3 1 11 7 2 5 8 0 [ + [ 4 6 7 10 9 12 1 5 3 [ B) [ 8 3 1 11 7 2 5 8 0 [ [ 4 6 7 10 9[ 12 1 5 3
- 6. Lesson 66.notebook February 07, 2013 [ C) 2 1 0 [ 1 3 5 5 7 10 11 8 9 4 [ D) 2 1 0 [ 1 3 5 5 7 10 11 8 9 4