函数是数量化地表达变化与对应思想的数学工具,通过数或形定量地描述变量之间的对应关系.在一次函数中,利用图表分析法可帮助同学们解决好一类最优化方案的选择的实际问题.1调运方案最优化问题人教版八年级教材一次函数应用部分有一道调运问题,题目如下:例1A城有肥料200吨,B城 A function is a mathematical tool that quantitatively expresses changes and corresponding ideas, and quantitatively describes the correspondence between variables by number or shape. In a function, the use of graph analysis can help students to solve the selection of optimal solutions. The actual problem .1 The optimal solution to the transport plan The eighth grade teaching material of the textbook for the teaching of grade one has a problem of transfer of the primary function. The topics are as follows: Example 1A City has 200 tons of fertilizer, City B