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# 8th alg -l4.1

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### 8th alg -l4.1

1. 1. Lesson 4­1.notebook October 10, 2013 Assignment: 1­­>L4.1, pg. 217­218, #3­36 (every 3rd) ­ Due Tomorrow (10/11) 2­­>L4.2, pg. 227, #2 ­ 30 (evens) ­ Due Tomorrow (10/11) 3­­>Chapter 3 Test signed for extra credit 4­­>Chapter 4 Test ­ Friday (10/18)
2. 2. Lesson 4­1.notebook October 10, 2013 Lesson 4.1 WarmUp: Find the next 3 terms of each arithmetic sequence. 1) ­2, 2, 6, 10, ... 2) ­2, 3, 8, 13, ... Write an equation for the nth term of the arithmetic sequence. 3) ­11, ­15, ­19, ­23 4) 15, 13, 11, 9, ... 5) What would be the "50th" term of the sequence in #4?
3. 3. Lesson 4­1.notebook October 10, 2013 Lesson 4.1: *slope­intercept form­­>an equation in the form y = mx + b...where m = slope and b = the y­intercept
4. 4. Lesson 4­1.notebook October 10, 2013 Lesson 4.1 examples: Write an equation in slope­intercept form with the given slope and y­intercept.  Then graph the equation. A) slope:  2 y­intercept:  4 B) slope:  3/4 y­intercept:  ­1 X Y X Y
5. 5. Lesson 4­1.notebook October 10, 2013 X Y Graph each equation by writing the equation in slope­ intercept form first. C) ­4x  +  y  =  2
6. 6. Lesson 4­1.notebook October 10, 2013 X Y D) ­3x  +  7y  =  21
7. 7. Lesson 4­1.notebook October 10, 2013 E) y = ­1 X Y
8. 8. Lesson 4­1.notebook October 10, 2013 F)  4x  +  6y  =  ­12 X Y