3) (8,-6) & (-6,8)
slope:


Answer :

Answer:

-1

Step-by-step explanation:

(8, -6) = x1 y1

(-6, 8) = x2 y2

y2 - y1 / x2 - x1

8 -(-6) / -6 - 8 = 14/-14 = ... -1/1 or just -1