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What is obtained by substituting \((0,0)\) in \(x+3y\leq 9\)?

Answer and explanation

Correct answer: True

Substituting \((0,0)\) gives the left-hand side as \(0+3(0)=0\). Thus, the inequality becomes \(0\leq 9\), which is true. Hence, the half-plane containing the origin is shaded in the graph. ‘False’ is incorrect because \(0\) is less than \(9\). Exam tip: After substituting a test point in a linear inequality, choose the side for which the inequality is true.

Related tags

Linear InequalitiesGraphical SolutionTest PointOriginCoordinate GeometryGraphical Solution Of Linear Inequalities In Two VariablesMathematicsClass 11 Mcq

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