Multiple Choice

A logistics coordinator is reviewing two different delivery route cost models: $3x + 4y = 12andandy = 3 - \frac{3}{4}x$. After simplifying the equations and using the elimination method, the coordinator discovers that the two equations represent the exact same line. What is the mathematical term for lines that lie directly on top of each other and share all points?

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Updated 2026-04-21

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