Respuesta :

1/3
Steps: y2-y1/x2-x1
-6+2/-3-9 = -4/-12
-4/-12 = 1/3

Answer:

the slope is 1/3

please correct me if I am wrong, as I have not done this in a while.      

Step-by-step explanation:

I used the formula (y2-y1)/ (x2-x1)