1. 3-3 Slope

2. Slope (m) the steepness of a line the rate of change the ratio of change in the y -coordinates to the change in x -coordinates the rise over the run formula

3. Rate of Change Determine if each function is linear. xy 16 212 318 424 xy -105 -21 6-4 14-10 Ex 1 Ex 2 +1 +6 +8 -4 -5 -6

4. Four Types of Slope positive negative zero undefined

5. Rise over Run Find the slope of each line. Ex 3 Ex 4 +4 +2

6. Rise over Run Find the slope of each line. Ex 5 Ex 6 -2 +3

7. Undefined vs. Zero Slope H O Y V U X orizontal Zer = a number ertical ndefined = a number

8. Find the slope of each pair of points Ex 7 (6, 4) (3, – 1) Ex 8 (0, – 3) (6, 0) Ex 9 (2, – 3) (2, 3) Ex 10 (1, – 4) (– 2, – 4)

9. Find the coordinate, given the slope Ex 11 Ex 11 (r, 6) (10, – 3);

10. Find the coordinate, given the slope Ex 12 Ex 12 (6, 3) (r, 2);

11. PWS 3-3

12. 1/21/2015 Pg 175 #1,2,4-17, 20,21