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What type of lines are (x+2y=4) and (x+2y=4)?

Answer and explanation

Correct answer: Coincident lines

The direct answer is option A, coincident lines. Both equations are exactly x+2y=4, so they have the same coefficients and the same constant. They do not describe two different lines; they describe one single line drawn twice. Every point satisfying the first equation also satisfies the second, so the pair has infinitely many common solutions. Option B, parallel lines, is wrong because distinct parallel lines have no common point, whereas these equations are identical. Option C, intersecting at one point, is wrong because two identical lines have infinitely many common points, not one. Option D is not a standard type of pair of lines and is irrelevant. Memory cue: identical equations mean coincident lines and infinitely many solutions.

Related tags

Linear EquationsSame EquationCoincident LinesEasy

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