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What type of solution is given by the lines 2x − 5y = 1 and 6x − 15y = 3?

Answer and explanation

Correct answer: Infinitely many solutions

The second equation is obtained by multiplying every term of the first equation by 3: 3(2x − 5y = 1) gives 6x − 15y = 3. Therefore, both equations represent the same line. In ratio form, 6/2 = (−15)/(−5) = 3/1 = 3, confirming that all three ratios are equal. Coincident lines have infinitely many common points, so the pair has infinitely many solutions. Two linear equations cannot have exactly two isolated intersection points.

Related tags

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

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