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在高中数学苏教版《必修5》“不等式”这一章里我们学习了这个知识点,知道了如何在线性目标函数的约束条件下求出最优解.其实我们也可以分三步来理解这个问题:画出可行域就是把不等式组所表示的平面区域画到直角坐标系中,即点在此平面区域内运动;所求的目标函数首先要理解其意义,然后才能进入到下一步;最后其最优解可以利用划归思想求出.简单说来就是:画出可行域、理解目标函数意义,求出最优解.一、如何画出可行域
We learned this knowledge point in the chapter “Compulsory 5” and “Inequality” in the high school mathematics Sujiao version and learned how to find the optimal solution under the constraints of the linear objective function. In fact, we can also divide it into three steps To understand this problem: drawing a feasible region is to draw the plane area represented by the inequality group into the Cartesian coordinate system, that is, the point moves in this plane area; the objective function to be sought first understands its meaning, and then enters into the next Step; Finally, the optimal solution can be used to draw the idea to find out. In simple terms is: draw feasible area, understand the meaning of the objective function, find the optimal solution.