What values make the inequality
+6 0 true?
76-54 2-1 0 1 2 3 4 5 67
-7-6-5 4 21 0 1 23 4 56
-7-6-5 4-3-2 -1 0 1 2 3 4 567 x
-4 2-1 0 1 2 3 45 6