To help Briella remember the formula for slope, the following explanation would be correct:
Slope is the ratio of rise over run. When given two points, you can determine the rise by finding the difference between the y-coordinates. You can determine the run by finding the difference between the x-coordinates.
This explanation correctly defines the slope (m) as:
\[ m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1} \]
Where \( (x_1, y_1) \) and \( (x_2, y_2) \) are the two points on the graph. The rise is the change in the y-values, and the run is the change in the x-values.