Respuesta :

slope = (4 + 8)/(-1 - 2)
slope = 12 / -3
slope = -4

answer
C. -4
The formula to find slope is (y2-y1)/(x2-x1)

4 - (-8)      4 + 8        12
---------  =  --------  =  -----  = -4
-1 - 2           -3           -3


Hope this helps!