Short Answer

Partition Numbers in Budget Variance Models

In a corporate financial audit, a budget variance ratio is modeled by the expression x2x+4\frac{x-2}{x+4}. To determine the range of variables (xx) where this ratio is non-positive, you must solve the rational inequality x2x+40\frac{x-2}{x+4} \leq 0. To begin the solution process, you must identify the 'partition numbers' that divide the number line into test intervals. List these two partition numbers and specify which one of the two must be excluded from the final solution set because it makes the expression undefined.

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Updated 2026-05-26

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