1. Chapter 5 Notes Writing Linear Equations

2. 5.1 Writing Linear Equations in Slope – Intercept Form Objective - Use the slope – intercept form to write an equation of a line

3. Terms Slope – intercept form

4. When given a graph Find the y – intercept and plug it in for b Find the slope form that point and plug it in for m

5. Practice Line A m= b= Line B m= b= A B

6. Writing the equation of a line Starting with y=mx+b Replace m with the value given for slope. Replace b with the value given for the y – intercept.

7. Practice Slope = 1 y – intercept = 0 Slope = ½ y – intercept = -9 Slope = -2/3 y – intercept = -258

8. Practice Slope = -6 y – intercept = 3/4 Slope = 0 y – intercept = 4 Slope = -2 y – intercept = 0

9. Practice One person form each row get white board materials for your entire row

10. 5.2 Writing Linear Equations Given the slope and a Point Objective - Use slope and any point on a line to write an equation of the line

11. Formulas Slope intercept formula y=mx+b Slope formula

12. Writing the equation of a line Starting with the slope formula Plug in the given point for y 1 and x 1 Plug in the given slope Solve and get the answer in y=form

13. Practice (1,4) m=3 (3,-3) m = 2

14. Practice (4,1) m=1 (1,5) m = 0

15. Practice (1,1) m = 4 (4,4) m = 3/2

16. Practice One person from each row get white board materials for your entire row

17. 5.3 Writing Linear Equations Given Two Points Objective - Use slope and any point on a line to write an equation of the line

18. Formulas Slope intercept formula y=mx+b Slope formula

19. Writing the equation of a line Starting with the slope formula Find the slope between the two points Using the slope formula for the second time Plug in one of the given points for y 1 and x 1 Plug in the slope that you found Solve and get the answer in y=form

20. Practice (-1,-2),(2,6) (1,4),(5,-1)

21. Practice (-1,-2),(3,-2) (2,0),(-2,6)

22. Practice (0,-5),(3,5) (1,1),(1,4)

23. Practice (-6,-5),(1,4) (2,3),(4,3)

24. Practice One person from each row get white board materials for your entire row