Answer
$$m = -\frac{1}{2}$$
Because the slope is negative, the line rises from left to right.
Work Step by Step
To find the slope, we use the formula:
$$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$$
We now plug in the given points into this equation to find the slope of this line:
$$m = \frac{1 - 2}{5 - 3}$$
Simplify:
$$m = \frac{-1}{2}$$
$$m = -\frac{1}{2}$$
Because the slope is negative, the line rises from left to right.