Short Answer

Locating Minimum Energy Variance

A facility manager uses the quadratic model y=x2−8x+12y = x^2 - 8x + 12 to analyze the variance in weekly energy usage. Based on the vertex analysis for this specific equation, at what numerical value of xx does the minimum variance occur?

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Updated 2026-09-18

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Ch.10 Quadratic Equations - Elementary Algebra @ OpenStax

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