函數(shù)模型的應(yīng)用（二）課件-2024-2025學(xué)年高一上學(xué)期數(shù)學(xué)人教A版（2019）必修第一冊

4.5函數(shù)的應(yīng)用（二）4.5.3函數(shù)模型的應(yīng)用（二）復(fù)習(xí)回顧在分界點的右側(cè)例題分析例5.假設(shè)你有一筆資金用于投資，現(xiàn)有三種投資方案供你選擇，這三種方案的回報如下：方案一：每天回報40元；長期投資應(yīng)選擇方案三方案二：第一天回報10元，以后每天比前一天多回報10元；方案三：第一天回報0.4元，以后每天的回報比前一天翻一番.請問，你會選擇哪種投資方案？定量計算方案一方案二方案三xy=40y=10xy=0.4*2x-112短期投資應(yīng)選擇方案一或者方案二345678910...長期投資應(yīng)選擇方案三e4r0ies1,?11S,

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