1. Warm up: 1.Write a definition: m = Compute the slope of a line through: 2. (2, -4) and (3, 5)  m = 3.(0, 5) and (2, 9)  m = 4.(-8, 1) and (4, 1)  m Draw an example of: 5.Positive slope6. Negative slope 7. Zero slope8. Undefined slope

2. 7.2 – Writing Equations in Point Slope Form Objective(s): to write a linear equation in point-slope form given the coordinates of a point on the line and the slope of the line Standard(s): 2.8.8g: 2.8.8h

3. Point-Slope Form:

4. Figure out the equation: What is the slope? What is the x-coordinate? What is the y-coordinate? The equation is:

5. Write the point-slope form of an equation for each line passing through the given point and having the given slope. 1. (2, 5), m = -32. (-1, -4), m = -2

6. 3. (-5, 2), m = 1 5. (0, -4), m = 1/3 4. (4, -3), m = -4/3 6. (-3, -3), m = 2

7. 7. (1, -1), m = -8 9. (-4, -4), m = 5/6 8. (6, 0), m = 2/3

8. Write the point slope form of an equation for each line. 10.11.

9. Write the point slope form of an equation for each line. 12.13.

10. Write the point slope form of an equation for each line. 14. the line through points (-1, 4) and (2, -1) 15. the line through (-2, -4) and (3, 3)

11. Homework: