Answer:
The slope of the line is -1.
Explanation:
To find the slope of any line given two points, we can use the following slope formula:
![m=(y_2-y_1)/(x_2-x_1)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/e9lgdayfzr27dyurvzbw9lffpiv7535tiv.png)
We can see that we have the two points: (1,4) and (3,2).
Let's let (1,4) be (x₁, y₁) and let's let (3,2) be (x₂, y₂). So, substitute:
![m=(2-4)/(3-1)](https://img.qammunity.org/2021/formulas/mathematics/high-school/evil4jhmb5nycescsw7h1iccl6pjf5rdad.png)
Subtract:
![m=-2/2](https://img.qammunity.org/2021/formulas/mathematics/high-school/56yl5phcvesl70dow7idhl1tcxwax5l08n.png)
Divide:
![m=-1](https://img.qammunity.org/2021/formulas/mathematics/high-school/1fx57sayebku9st01vjy1wvoslji0iuyjs.png)
So, the slope of our line is -1.
Since it's negative, this tells us that is is going downwards.
And we're done!