The correct explanation of slope that would help Briella figure out the formula is:
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 accurately describes how to calculate the slope (m) using the formula \( m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1} \). The rise is the difference between the y-coordinates (y-values), and the run is the difference between the x-coordinates (x-values).