Answer:
Yes, Yes
Explanation:
(81)
y < x + 6
given the point (1, 6 )
substitute x = 1, y = 6 into the inequality and compare both sides
6 < 1 + 6 , that is
6 < 7 ← True
thus (1, 6 ) is a solution of the inequality
(82)
y ≤ - x + 2
given the point (5, - 3 )
substitute x = 5, y = - 3 and compare both sides
- 3 ≤ - 5 + 2 , that is
- 3 ≤ - 3 ← True
thus (5, - 3 ) is a solution of the inequality