Second option.
Step-by-step explanation:
The slope of a line can be calculated with this formula:
![m=\frac{y_2-y_1}{x_2-x_1}](/tpl/images/0445/5830/ab87e.png)
Then, you need to choose two points of the line shown in the graph and substitute them into the formula for calculate the slope:
Let's pick the points (-4,4) and (4,-2).
Substituting:
![m=\frac{-2-4}{4-(-4)}](/tpl/images/0445/5830/6230e.png)
Simplifiying, you get that the slope of the line in the graph is:
![m=\frac{-2-4}{4-(-4)}\\\\m=\frac{-6}{4+4}\\\\m=\frac{-6}{8}\\\\m=-\frac{3}{4}](/tpl/images/0445/5830/5e384.png)