(通用版)2020版高考数学大一轮复习第10讲函数的图像课件理新人教A版.pptx

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课前双基巩固课堂考点探究教师备用例题,1.掌握基本初等函数的图像特征,能熟练运用基本初等函数的图像解决问题. 2.掌握图像的作法:描点法和图像变换. 3.会运用函数的图像理解和研究函数性质.,考试说明,知识聚焦,f(x-a),f(x)+b,-f(x),f(-x),-f(-x),logax(a0且a1),f(ax),af(x),对点演练,题组一 常识题,题组二 常错题,索引:函数图像的几种变换记混;分段函数的图像问题.,探究点一 作函数的图像,探究点二 识图与辨图的常见方法,微点1 特殊点法,微点2 性质检验法,微点3 图像变换法,应用演练,探究点三 以函数图像为背景的问题,微点1 研究函数的性质,微点2 求不等式的解集,微点3 确定方程根的个数,微点4 与函数思想结合求参数的取值范围,应用演练,【备选理由】例1从函数的奇偶性出发,结合图像经过的特殊点确定函数的图像;例2考查函数图像的平移变换与对称变换,巩固对函数图像变换的认识;例3需要结合函数的性质,作出相应函数的简图,充分利用图像巧解不等式;例4是对原例题的一个补充,是利用已知方程根的个数求参数范围问题,同样需要利用函数图像解决.,

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