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Which value table is correct for the line 4x + y = 16?

Answer and explanation

Correct answer: (x = 1, y = 12) and (x = 3, y = 4)

A value table for a line is valid only when every listed ordered pair satisfies the equation. Rearranging 4x + y = 16 gives y = 16 − 4x. For x = 1, y = 16 − 4(1) = 12, so (1, 12) lies on the line. For x = 3, y = 16 − 4(3) = 4, so (3, 4) also lies on it. Therefore option A is correct. In option B, substituting (1, 4) gives 8 rather than 16, and substituting (3, 12) gives 24. In option C, the expressions give 4 and 32; option D also fails substitution. Checking each pair directly prevents exchanging or guessing coordinate values.

Related tags

Linear-EquationsValue-TableGraphical-MethodSubstitutionGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematics

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