AP Precalculus Quiz
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POLYNOMIAL AND RATIONAL FUNCTIONS
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In the context of the example, a polymer sample has stress σ(x)=150xx+6\sigma(x)=\dfrac{150x}{x+6} MPa and strain ε(x)=0.3xx+6\varepsilon(x)=\dfrac{0.3x}{x+6} for load x≥0x\ge0 kN. As load increases, each quantity increases quickly then levels off, reflecting diminishing gains from additional loading. Because strain scales with stress, higher stress corresponds to higher strain throughout the test. This supports safe design decisions by estimating deformation under larger loads. Based on the scenario, what happens to strain if load increases from moderate to very large values?
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