1. Warm ups 1. Find the x and y intercepts: 3x -9y = 18 2. Write in Point-Slope Form: (5,-3) m = -2(3,4) (-1,8) 3. Write in Standard Form: (2,3) (0,3)(4, -5) m = -3

2. Reminders Join Edmodo Quiz Tomorrow I will stamp homework tomorrow

3. 6-4 Slope-Intercept Form Objective: To write an equation in slope-intercept form.

4. Slope-Intercept Form Does anyone know what it is?... y = mx + b m = slope b = y-intercept (this is on y axis)

5. Given slope and y-intercept Example 1: Write an equation in slope-intercept form Given: m = 4 b = -2 y = 4x – 2 Example 2: Write an equation in slope-intercept form Given:

6. Write in Slope-Intercept 5x – 4y = 20

7. Example 5 Write an equation in slope-intercept form given: (2,1) (4,0) Steps: 1. Find slope 2. Plug into point-slope 3. Convert to slope-intercept x 1 y 1 x 2 y 2

8. Example 6 Write an equation in slope-intercept form given: (0,6) (4,0) x 1 y 1 x 2 y 2

9. Given a graph Example 7: write an equation in slope-intercept form b = 2 m = -2/3 -2 3

10. Given a graph TOO: write an equation in slope-intercept form b = -4 m = 1 1 1 y = x – 4

11. TOO – students can present. 1. m = 5, b = -3 2. y – 2 = 4(x + 7) 3. (-2,-3) (-1,2) Answers: 1. y = 5x – 3 2. y = 4x + 30 3. y = 5x + 7

12. Homework time Pg. 351 # 28-39 Work quietly in your seat Also, finish all unfinished homework. I will stamp tomorrow Quiz tomorrow!!!!!!