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Which point lies in the open region satisfying y < −x+5 and y > x−1?

Answer and explanation

Correct answer: (2,2)

A point in the open solution region must satisfy both strict inequalities. Strict signs also mean that a point on either boundary line is excluded. For option B, (2, 2), the first inequality gives 2 < −2 + 5 = 3, which is true, and the second gives 2 > 2 − 1 = 1, also true. Hence (2, 2) lies in the required intersection. Option A, (3, 2), fails because 2 > −3 + 5 = 2 is false; equality would not satisfy the strict condition. Option C, (1, 4), lies on the first boundary because 4 = −1 + 5. Option D, (4, 0), fails the second inequality since 0 is not greater than 3. Therefore option B is the only valid answer.

Related tags

Linear InequalitiesOpen RegionPoint TestingStrict InequalitiesGraphical Solution Of Linear Inequalities In Two VariablesMathematicsClass 11 Mcq

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