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For the line (x-y=5), which point is obtained when (y=2)?

Answer and explanation

Correct answer: ((7,2))

The governing concept is substitution in the equation of a line and the correct order of coordinates in an ordered pair. The given equation is x − y = 5 and y = 2. Substituting y = 2 gives x − 2 = 5. Adding 2 to both sides produces x = 7. Therefore the point is written as (x,y) = (7,2), so option B is correct. Option A reverses the x- and y-coordinates. Option C uses the constant 5 as the x-coordinate without solving the equation. Option D fails direct verification because 3 − 2 = 1, not 5. Substitution confirms that 7 − 2 = 5.

Related tags

Ordered PairSubstitutionGraphical MethodLinear EquationsGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematics

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