1. Warm Ups (Monday 4/13) Label the slopes of the lines as “Positive” or “Negative” or “Zero” or “Undefined”

2. Warm-Ups (Tuesday 4/14) 1. 2. 3. 4.

3. Warm-Ups (Wednesday 4/15) Find the slopes of the following lines:

5. Slopes are commonly associated with mountains.

6. The slope we are studying is associated with the graph of a line.

7. Definitions of Slope: a.The tilt or inclination of a line a.The ratio of vertical change to horizontal change. c. The change in y over the change in x

8. Four Types of Slope: Positive Slope: Negative Slope: Zero Slope: Undefined slope:

10. Slope can be calculated by finding the rate of change between two points

11. This ratio (slope) is also known as Rise Run

12. 1. Find the slope of the line that passes through (3,2) and (-1,-1).

13. 2. Find the slope of the line.

14. 3. Find the slope of the line.

15. 4. Find the slope of each line: Black m = ________ Red m = _________ Blue m = _________

16. 5. Find the slope of these lines. Green m = ________ Orange m = _________

17. 6. Slope is and the point (-2,-1).

18. 7. Given: slope is 2/3 and the point is (1,0)

19. Slope Formula If we are given two points… … we can calculate the slope of the line they form.

20. Find the slope of the line that goes through the points: 10. (3,-4) and (-7,1).

21. Find the slope of the line that passes between the points: 11: (-2,6) and (-3,2) 12: (4,1) and (4,-8) 13: (0,-5) and (-11,-5)