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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 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 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)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 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)【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 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.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 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)【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 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)【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 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 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】 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 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 .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
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