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If two equations have no common solution then what type of pair are they?

Answer and explanation

Correct answer: Inconsistent

The direct answer is option C: inconsistent. A pair is called consistent if it has at least one common solution. If it has no common solution, it is inconsistent. On a graph, two linear equations with no common solution are represented by distinct parallel lines: they never meet, so no ordered pair \((x,y)\) satisfies both equations. Option A, consistent, is wrong because consistency means one or more common solutions. Option B, dependent, usually means the two equations represent the same line and therefore have infinitely many common solutions, not zero. Option C is correct because the phrase “no common solution” is exactly the definition of an inconsistent pair. Option D, independent, generally refers to equations that give a unique common solution, so it does not describe this case. Memory cue: no solution means inconsistent; one solution means independent and consistent; infinitely many solutions means dependent and consistent.

Related tags

Linear EquationsInconsistentNo Common Solution

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