3.2.1 函数的单调性(第1课时)课件-2025-2026学年高一上学期数学人教A版(2019) 必修第一册

函数的单调性 泰山作为中国地理文化的象征,以其拔地通天之势屹立在齐鲁大地之上,泰山的美在于它的起伏变化.类似地,作为高中数学的核心,函数的魅力也是如此.今天我们一起来探究函数的起伏变化——函数的单调性. Click to edit Master text styles Second level Third level Fourth level Fifth level 观察函数y=x，y=-x，y=x2的图像，分析自变量变化时，函数值有什么变化规律？ Click to edit Master text styles Second level Third level Fourth level Fifth level ① ② > < Click to edit Master text styles Second level Third level Fourth level Fifth level             Click to edit Master text styles Second level Third level Fourth level Fifth level x y 0 ① ② Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level Click to edit Master text styles Second level Third level Fourth level Fifth level $