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Put x = 2 , y = 1 in inequality
y ā„ a x + 6
1 ā„ a ā 2 + 6
1 ā„ 2 a + 6
Subtract 6 to both sides
- 5 ā„ 2 a
Divide both sides by 2
- 5 / 2 ā„ a
This means:
a ā¤ - 5 / 2