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What relationship exists between (8x-4y=12) and (2x-y=3)?

Answer and explanation

Correct answer: The first equation is 4 times the second

Multiplying every term of the second equation by 4 gives 4(2x-y)=4(3), or 8x-4y=12. Thus, both equations represent the same line and have infinitely many solutions. Option B is incorrect because the multiplying factor is 4, not 2. Exam tip: when the coefficients and constant terms of one linear equation are in the same ratio as those of the other, the lines are coincident and the system has infinitely many solutions.

Related tags

Linear EquationsSolvability ConditionsCoincident LinesInfinite SolutionsConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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