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Which point does not lie on the line 5x + 11y = 55?

Answer and explanation

Correct answer: (4, 3)

The governing concept is testing whether a point lies on a line by substitution. A point (x, y) lies on 5x + 11y = 55 only when its coordinates make the left-hand side equal to 55. For (11, 0), 5(11) + 11(0) = 55, so it lies on the line. For (0, 5), 5(0) + 11(5) = 55, so it also lies on the line. For (22/5, 3), 5(22/5) + 11(3) = 22 + 33 = 55, so this point is valid as well. For (4, 3), the value is 5(4) + 11(3) = 20 + 33 = 53, not 55. Therefore option D is the only point that does not lie on the line.

Related tags

Graphical MethodPoint On LineSubstitutionLinear EquationGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematics

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