I. Both x and y are positive If we have x = 7 and then y = -1 ⇒ Condition I is not true II. If x is positive, y must be positive ⇒ If we have x = 5 then y = - 3 ⇒ Condition II is not true III. If x is negative, y must be negative If we have x = -1 6 then y =x -8 = -16 - 8 = -24 Condition III is true as whenever x is negative, y isalso negative.