解一次函数最值应用题除了灵活利用一次函数的性质外,还要注意灵活利用不等式(组)的知识先确定自变量的取值范围及其最大值或最小值,再求出相应的一次函数最值.例1某大蒜生产基地喜获丰收,收大蒜200吨.经市场调查,可采用批发、零售、冷库储藏后销售,并按这三种方式销售,计划每吨的售 In addition to the flexible use of the nature of a linear function, but also pay attention to the flexible use of inequality (group) knowledge to determine the range of independent variables and its maximum or minimum, and then find the corresponding primary function Example 1. A garlic production base was blessed with 200 tons of garlic after market research, which could be sold in wholesale, retail or cold storage after sale and sold in these three ways with planned sales per tonne