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Is the point \((5,0)\) in the solution region of \(4x+y\leq 16\)?

Answer and explanation

Correct answer: No

Substituting \((5,0)\) gives \(4x+y=4(5)+0=20\). Since \(20>16\), the point does not satisfy \(4x+y\leq16\), so it is not in the solution region. It is not on the boundary either, because boundary points satisfy \(4x+y=16\). Exam tip: Test a point by substituting its \(x\)- and \(y\)-coordinates into the inequality.

Related tags

Linear InequalitiesPoint TestSolution RegionGraphical InequalitiesClass 11 MathematicsGraphical Solution Of Linear Inequalities In Two VariablesMathematicsClass 11 Mcq

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