《高中数学二元一次不等式组与简单的线性规划问题》由会员分享，可在线阅读，更多相关《高中数学二元一次不等式组与简单的线性规划问题（50页珍藏版）》请在金锄头文库上搜索。
1、菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）第三节 二元一次不等式(组)与简单的线性规划问题Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课
2、后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）1二元一次不等式表示平面区域在平面直角坐标系中，平面内所有的点被直线AxByC0分成三类：(1)满足AxByC_0的点；(2)满足AxByC_0的点；(3)满足AxByC_0的点Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 200
3、4-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）2二元一次不等式表示平面区域的判断方法直线l：AxByC0把坐标平面内不在直线l上的点分为两部分，当点在直线l的同一侧时，点的坐标使式子AxByC的值具有_的符号，当点在直线l的两侧时，点的坐标使AxByC的值具有_的符号相同相反Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profil
4、e 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）3线性规划中的基本概念名称意义 线性约 束条 件由x，y的_不等式(或方程)组成的不等式( 组)线性目 标函 数关于x，y的_解析式可行解满足线性约束条件的解_可行域所有可行解组成的_最优解使目标函数取得_或_的可行解线性规 划
5、问 题在线性约束条件下求线性目标函数的_ 或_问题一次一次(x，y)最大值最小值最大值 最小值集合Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础
6、高考体验明考情新课标 文科数学（安徽专用）1可行解与最优解有何关系？最优解是否唯一？【提示】 最优解必定是可行解，但可行解不一定是最优解最优解不一定唯一，有时唯一，有时有多个2点P1(x1，y1)和P2(x2，y2)位于直线AxByC0的两侧的充要条件是什么？【提示】 (Ax1By1C)(Ax2By2C)0. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client P
7、rofile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 20
8、04-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）【解析】 x3y60表示直线x3y60及左下方部分，xy20表示直线xy20右上方部分故不等式组表示的平面区域为选项B所示部分【答案】 BEvaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET
9、 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）2如果点(1，b)在两条平行直线6x8y10和3x4y50之间，则b应取的整数值为( )A2 B1 C3 D0【答案】 BEvaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Cr
10、eated with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for
11、 .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）【答案】 CEvaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profi
12、le 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）【解析】 不等式组表示的区域如图中的阴影部分所示，Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile
13、5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）【答案】 1Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 200
14、4-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）【解析】 作不等式组表示的可行域，如图所示，作直线l0：3xy0，并上下平移当直线过点A、B时，z分别取得最大值、最小值 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Clie
15、nt Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.菜 单课后作业典例探究提知能自主落实固基础高考体验明考情新课标 文科数学（安徽专用）Evaluation only.Evaluation only. Created with Asp
