1. Unit 7: Writing Linear Equations THURS., DECEMBER 10 TH, 2015 (1, 3, 5, 7)

2. 7A Quiz 10 EXTRA MINUTES

3. Unit 7: Writing Linear Equations A. Write an equation of a line when given the graph of a line. More time for quizzes will be given on Friday, December 11, 2015 (12-11-15)

4. WARM-UP 12/10/15  Step 1: Write your name, the date, and the unit on the top of your paper.  Step 2: Write down the warm-up.  How do you find the slope when given two points?  What is the slope for (2, 0) and (-8, 10)  Step 3: Complete the warm-up.  Step 4: Place your pencil down and remain quiet to show that you are finished.

5.  How do you find the slope when given two points?  What is the slope for (2, 0) and (-8, 10)

6. Unit 7: Writing Linear Equations B. Write an equation of a line when given two points on the line.

7. Today’s Agenda 12/10 7B Practice 7B Notes

8. 7B: Given two points What is the equation of a line in slope- intercept form?

9. 7B: Given two points How do we find the slope of a line when given two points?  Example: (3, 5) and (1, -3)

10. 7B: Given two points Example: (3, 5) and (1, -3) ; slope (m) = ____  Do we know the y-intercept from these two points?

11. 7B: Given two points Example: (3, 5) and (1, -3) ; slope (m) = ____  What do we know about this line so far?

12. 7B: Given two points Example: (3, 5) and (1, -3) ; slope (m) = ____  Choose one point and ______ in the values for ___ and ___.

13. 7B: Given two points Example: (3, 5) and (1, -3) ; slope (m) = ____ (a) (3, 5), m = ____ (b) (1, -3), m = ____ y = ____ x + ____

14. 7B: Given two points So… how did we find the equation of a line when given two points ?

15. 7B: Given two points  Problem #7: (0, -1) and (-4, 2) m=

16. Problem #7: (0, -1) and (-4, 2) m=

17. Problem #8: (-2, 2) and (0, 2) m=

19. Problem #9: (4, 3) and (1, 2) m=

21. Problem #10: (-1, -5) and (0, 1) m=