Which of the following points is not a solution of y ≤ x?

Answer:
C
Step-by-step explanation:
y ≤ x
consider each point
A (5, - 3 )
- 3 < 5 ← True
B (- 1, - 1 )
- 1 ≤ - 1 ← True
C (- 6, 4 )
4 > - 6 , thus not a solution
D (2, - 6 )
- 6 < 2 ← True
E (3, 1 )
1 < 3 ← True