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What graph will be formed by (x+2y=3) and (2x+4y=6)?

Answer and explanation

Correct answer: The same line

The second equation is exactly twice the first: multiplying \\(x+2y=3\\) by 2 gives \\(2x+4y=6\\). Hence, both equations represent the same line and have infinitely many common solutions. Exam tip: check \\(a_1/a_2=b_1/b_2=c_1/c_2\\); when all three ratios are equal, the lines are coincident. Therefore, the parallel-lines option is not correct here because the two equations do not represent distinct lines.

Related tags

Linear EquationsGraphical SolutionCoincident LinesConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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