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The line (x+y=0) must pass through which point?

Answer and explanation

Correct answer: ((0,0))

The governing test is direct substitution: a point lies on a line if its coordinates make the equation true. For the origin (0,0), x+y=0+0=0, so the equation is satisfied and the line must pass through that point. Therefore option C is correct. Checking the distractors confirms the result: (1,1) gives 2, (0,1) gives 1, and (1,0) gives 1; none of these equals 0. In fact, x+y=0 can also be written as y=−x, a line through the origin with slope −1. The phrase “must pass” asks for a guaranteed point, and the origin is guaranteed by the zero constant term.

Related tags

OriginPoint On LineGraphGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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