Respuesta :

Slope = (y2-y1)/(x2-x1)
Plug in what you know
-1 = (-2-4)/(3-k)
-1 = -6/(3-k)
-6/6 = -1, so 3-k = 6
3-k = 6, -k = 3, k = -3
Answer: k = -3