1. Algebra II 2.2: Find slope and rate of change HW: p.86 (4-8 even, 18-22 even) Quiz 2.1-2.3: Wednesday, 10/9

2. Slope formula

3. Find the slope of the line passing through the given points. 1.) (0, 3), (4, 8) 2.) (2, 1), (2, -4) 3.) (-8, 1), (5, 1)

4. Find the slope of the line passing through the given points. 4.)

5. 5.)

6. Parallel and Perpendicular Lines Parallel lines: same slope. Parallel lines: same slope. Perpendicular lines: slopes are negative reciprocals of each other. Perpendicular lines: slopes are negative reciprocals of each other.

7. Determine if the two lines are parallel, perpendicular, or neither. 1.) Line 1: (1, -4), (4, -2) Line 2: (8, 1), (14, 5) Line 2: (8, 1), (14, 5)

8. Determine if the two lines are parallel, perpendicular, or neither. 2.) Line 1: (1, 5), (3, -2) Line 2: (-3, 2), (4, 0) Line 2: (-3, 2), (4, 0)

9. Algebra II 2.3: Graph equations of lines HW: p.93 (10-18 even, 23)

10. Graphing in slope-intercept form. y = mx + b; y = mx + b; where m = slope and b = y-intercept where m = slope and b = y-intercept Plot b (point on y-axis) Plot b (point on y-axis) From y-intercept count using slope to plot additional points. From y-intercept count using slope to plot additional points.

11. Graph y = 2x 1.)

12. Graph y = x + 3 2.)

13. Graph y = -2/3x – 1 3.)

14. Graph y = -5 4.)

15. Graph x = 3 5.)

16. Graph f(x) = 1 – 3x 6.)

17. Do Now: Determine if the two lines are parallel, perpendicular, or neither. Line 1: (5, 8), (7, 2) Line 2: (-7, -2), (-4, -1)

18. Graph 2y + 3x = 10 7.)

19. Graph using the x and y-intercepts: x + 5y = -15 8.)

20. Graph using the x and y-intercepts: -6x + 8y = -36 9.)

21. Graph using the x and y-intercepts: 2x – y = 10 10.)