Respuesta :

X=7. Undefined
X=-7. Undefined

Answer:

1. slope = 0         2. slope = 0

Step-by-step explanation:

1.  y2 - y1 / x2 - x1

-8 - 3 / 7 - 7

-11/0

= 0

2. y2 - y1 / x2 - x1

8 - 2 / -7 - (-7)

6 / 0

= 0