Respuesta :

Answer: 21/-20

Why?
To find skip you do the difference of Y/ the difference of x. So...
12+9/ -19-1 = 21/-20

Hope this helps :D

Answer:

Slope: -11/10

Step-by-step explanation:

always do    y2 - y1/x2 - x1

12 - 1 / -19 + 9 = -11/10