Example

Example: Evaluating Ordered Pairs for a Linear Equation

To evaluate whether an ordered pair is a solution to a linear equation such as y=2x3y = 2x - 3, substitute the xx and yy values into the equation. For instance, testing the point (0,3)(0, -3) yields 3=2(0)3-3 = 2(0) - 3, which simplifies to the true statement 3=3-3 = -3, meaning it is a solution. When plotted, this point lies exactly on the line representing the equation. Testing (2,3)(2, -3) yields 3=2(2)3-3 = 2(2) - 3, which simplifies to the false statement 31-3 \neq 1, meaning it is not a solution. When plotted, this point does not lie on the line.

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Updated 2026-05-03

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