# Slope equation: $m = \frac{y_2-y_1}{x_2- x_1}$

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##### Intros

##### Examples

###### Lessons

- Determine the slope using the "rise over run" method

- Determine the slope based on the graph: positive, negative, zero, or undefined, and verify

- Given two points of a line, determining the slope using $m = (y_2 - y_1) / (x_2 - x_1)$
- Arrange the slopes from flattest to steepest.
- Two isosceles triangles have the same height. The slopes of the sides of triangle A are double the slopes of the corresponding sides of triangle B. How do the lengths of their bases compare?