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What is the correct description of the graph of (2x+11y=27) and (5x+19y=46)?

Answer and explanation

Correct answer: Lines intersecting at one point

For the two equations, \,\(a_1/a_2=2/5\) and \,\(b_1/b_2=11/19\). Since \,\(2/5 \ne 11/19\), the two lines have different slopes and intersect at exactly one point. Hence, the pair has a unique solution. Distinct parallel lines require \,\(a_1/a_2=b_1/b_2\), which is not true here. Exam tip: first compare \,\(a_1/a_2\) and \,\(b_1/b_2\).

Related tags

Pair Of Linear EquationsGraphical SolutionIntersecting LinesUnique SolutionConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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