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Where will (x - 2y = 9) and (2x + y = 8) meet on the graph?

Answer and explanation

Correct answer: (5, -2)

The meeting point of two graphs is the ordered pair that satisfies both linear equations. Test option A: with x = 5 and y = -2, the first equation becomes 5 - 2(-2) = 5 + 4 = 9, and the second becomes 2(5) + (-2) = 10 - 2 = 8. Thus (5, -2) lies on both lines and is their intersection. Option A is correct. The order matters: the first coordinate is x and the second is y. For (-5, 2), the first equation gives -9; for (4, -1), it gives 6; and for (2, 5), it gives -8, so the other options do not satisfy the first equation. A negative y-coordinate is perfectly acceptable and represents a point below the x-axis.

Related tags

Graphical-MethodIntersectionOrdered-PairGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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