Slope refers to the steepness of a line and is calculated by finding the rise over the run between two points on the line. The document provides examples of how to calculate slope given two points and the slope of example lines, as well as graphically defining slope as the change in y over the change in x between two points on a line.

2. What is Slope? Every line has a slope. Slope refers to the steepness of a line. Since the line on the right is steeper, it has a larger slope.

3. Slope can also be defined as: rise (change in x) run (change in y)

4. Slope can be positive Slope can be negative Slope can be zero

5. How do you find slope? Slope is represented by m . To find slope, you need two points on the line. Plug in the coordinates of the first point in for (x 1 ,y 1 ) and the second point as (x 2 ,y 2)

6. Let’s Practice! Find the slope of the line that passes through the points (1,2) and (-2,-4). y 2 – y 1 = -4 - -2 = -2 m = x 2 – x 1 = -2 - -1 = -1 = 2

7. What is the slope of the given line? A: -2 B: -1 C: -½

10. What is the slope of the given line? A: ½ B: -½ C: 2 D: -2

13. What kind of slope does this line have? A: Positive B: Negative C: Zero

16. Find the slope of a line passing through the points (6,3) and (-2,3). A: -1 B: 0 C: 3

19. Graphically, what is slope? A: The point the line crosses the y-axis B: Run Rise C: Change in y Change in x

20. I am done! Start Over

22. Source Stapel, Elizabeth. "Slope of a Straight Line." Purplemath. Available from http://www.purplemath.com/modules/slope.htm. Accessed 15 April 2010