MCQ
Ordered pair that satisfy the equation x + y + 1 < 0 is:
- A(0, -1)
- B(-2,0)
- C(2, -4)
- ✓Both (B) and (C)
✓
Answer
Correct option: D.
Both (B) and (C)
Given inequation is x + y + 1 < 0
From option A, 0 + (-1) + 1 < 0
⇒ 0 < 0 which is false
Hence, (0, -1) is not a solution.
From option B, -2 + 0 + 1 < 0
⇒-1 < 0 which is true
Hence, (-2,0) there is a solution.
From option C, 2 - 4 + 1 < 0
⇒ -1 < 0 which is true.
Hence, (2,-4) is a solution.
From option A, 0 + (-1) + 1 < 0
⇒ 0 < 0 which is false
Hence, (0, -1) is not a solution.
From option B, -2 + 0 + 1 < 0
⇒-1 < 0 which is true
Hence, (-2,0) there is a solution.
From option C, 2 - 4 + 1 < 0
⇒ -1 < 0 which is true.
Hence, (2,-4) is a solution.
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