函数模型的应用（二）课件-2024-2025学年高一上学期数学人教A版（2019）必修第一册

4.5函数的应用（二）4.5.3函数模型的应用（二）复习回顾在分界点的右侧例题分析例5.假设你有一笔资金用于投资，现有三种投资方案供你选择，这三种方案的回报如下：方案一：每天回报40元；长期投资应选择方案三方案二：第一天回报10元，以后每天比前一天多回报10元；方案三：第一天回报0.4元，以后每天的回报比前一天翻一番.请问，你会选择哪种投资方案？定量计算方案一方案二方案三xy=40y=10xy=0.4*2x-112短期投资应选择方案一或者方案二345678910...长期投资应选择方案三e4r0ies1,ꢀ11S,

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