1. Homework Corrections
Lesson 12.1a Worksheet
all

2. Calendar 11.4 Unit 2 Test 2 Review Unit 2 Test 2 12.1a 12.1b 12.1c
Monday
Tuesday
Wednesday
Thursday
Friday
11.4
Unit 2 Test 2 Review
Unit 2
Test 2
12.1a
12.1b
12.1c
12.2a
12.2b
12.3a
12.3b
Quiz,
12.4
13.1
13.2
13.3
No School

3. Homework Lesson 12.1b Worksheet all Class Rules!!!
No getting up without asking
2. No talking until activities
3. Take Notes!
DO ALL EXAMPLES
Raise your hand

4. Slope-Intercept Form
12.1b

5. Objectives
Given two points I can write a linear equation
I can graph a linear equation in slope-int form

6. Write the equation
graph the equation

7. Last class…

8. Slope Intercept Form of a Linear Equation
y-intercept

9. Writing an Equation from a Graph
Step 1 Find y-intercept
Step 2 Find slope (rise over run)
(change in y over change in x)
Step 3 Put values in y-intercept form (y=mx+b)
y-intercept=
Slope=

10. Now let’s do the same thing…
But without the graph…

11. Write the equation

12. What can we do with two points?
Let’s say we have two points (3,1) (4,3) x₁ y₁ x₂ y₂
y-intercept
Slope

13. Writing Equations from Two Points
What’s the equation of the line that passes through (2,1), (5,-8) ? x₁ y₁ x₂ y₂
y-intercept=
Slope=

14. Writing Equations from Two Points
What’s the equation of the line that passes through (3,-2), (1,-3) ? x₁ y₁ x₂ y₂
y-intercept=
Slope=

16. Writing Equations from Two Points
What’s the equation of the line that passes through (1,-6), (-3,10) ? x₁ y₁ x₂ y₂
y-intercept=
Slope=

17. Writing Equations from Two Points
What’s the equation of the line that passes through (-3,4), (2,-1) ? x₁ y₁ x₂ y₂
y-intercept=
Slope=

18. Review Given two points I can write a linear equation
I can graph a linear equation in slope-int form

19. Second New Thing

20. Graphing using Slope Intercept Form
Super Easy!!!!!
Only works if equation is in slope intercept form

21. Graphing using Slope Intercept Form
y-intercept
Slope

22. Graphing using Slope Intercept Form
y-intercept
Slope

23. Graphing using Slope Intercept Form
y-intercept
Slope

24. Graphing using Slope Intercept Form

25. Graphing using Slope Intercept Form

26. Remember

27. Graphing using Slope Intercept Form

28. Graphing using Slope Intercept Form

29. Graphing using Slope Intercept Form

30. Review Given two points I can write a linear equation
I can graph a linear equation in slope-int form

31. Lesson 12.1b Worksheet all Homework End of Class Rules!!!
1. Clean Up your Area
Wait in your chairs
3. I dismiss not the bell
4. Push in your chairs
5. Keep it to a low roar