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In the first quadrant, which corner of the solution region for \(2x+y\le 10\) lies on the \(y\)-axis?

Answer and explanation

Correct answer: \((0,10)\)

For any point on the \(y\)-axis, \(x=0\). Substituting \(x=0\) in the boundary line \(2x+y=10\) gives \(y=10\), so the corner is \((0,10)\). Although \((0,5)\) satisfies the inequality, it is not a vertex formed by the boundary line and the axes. Exam tip: to find an axis intercept, set the other variable equal to zero.

Related tags

Linear InequalitiesGraphical SolutionY-InterceptFirst QuadrantFeasible RegionBoundary LineGraphical Solution Of Linear Inequalities In Two VariablesMathematics

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