Answer/Step-by-step explanation:
To find the slope of the line that passes through (3, 2) and (−3, 14), the formula below is used:
![slope = (rise)/(run)](https://img.qammunity.org/2021/formulas/mathematics/high-school/bu6fnneoy0noi0grrmm0rik1hjsjthfnlj.png)
Thus, the slope simply means the change in y over the change in x.
Thus:
Rise represents change in y = 14 - 2 = 12
Run represents change in x = -3 - 3 = -6
Therefore,
Thus:
The student was supposed to calculate [the change in y over the change in y] but [calculated the change in x over the change in y].