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For the line (2x-y=0), the inequality (2x-y<0) is equivalent to which form?

Answer and explanation

Correct answer: \(y>2x\)

From \(2x-y<0\), we get \(-y<-2x\). Multiplying both sides by \(-1\) reverses the inequality sign, giving \(y>2x\). The form \(y<2x\) reverses the sign incorrectly, while \(y=2x\) represents only the boundary line and is not included in a strict inequality. Exam tip: always reverse an inequality sign when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesTwo VariablesInequality TransformationSign ReversalGraphical SolutionGraphical Solution Of Linear Inequalities In Two VariablesMathematicsClass 11 Mcq

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