Respuesta :

Answer:

-⅔

B. Perpendicular

Step-by-step explanation:

slopes

AB: (3--1)/(-5-1) = 4/-6 = -2/3

AD: (2--1)/(3-1) = 3/2 = 1 1/2

(-2/3) × (3/2) = -1

Hence perpendicular