Answer:
I believe the answer is C, -4/5.
Step-by-step explanation:
You first find two points on the line and substitute them into the slope formula. I used points (-10,10) and (5,-2).
1. [tex]y_2-y_1/x_2 - x_1[/tex]
2. -2-10/5-(-10)
3. -12/15
4. -4/5
I hope this helps, sorry for the late response.