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【2027届 · 高一 · 必修1 · 课件PPT+Word】第四章 §4.5.1 函数的零点与方程的解

  • 2026-08-24 10:24:46
【2027届 · 高一 · 必修1 · 课件PPT+Word】第四章 §4.5.1 函数的零点与方程的解

【高一 · 必修1 · 课件PPT】

2026-2027学年高一·必修1（人教A版）课件系列
本文编号：26G1R1KJ050；资料获取方式见文末

【学习目标】

1.了解函数的零点、方程的解与图象交点三者之间的联系.(重点)

2.会借助函数零点存在定理判断函数的零点所在的大致区间.(重点)

3.能借助函数单调性及图象判断零点个数.(难点)

【知识梳理】

1.概念：对于一般函数y=f(x)，我们把使f(x)=0的实数x叫做函数y=f(x)的零点.

【注意点】

(1)零点不是点，是函数图象与x轴交点的横坐标.

(2)求零点可转化为求对应方程的解.

(3)并不是所有的函数都有零点，如函数y=2x，y=|x|+1都没有零点.

本文内容获取方式

1.本文编号：26G1R1KJ050， 售价5元，含有两个文件：①可编辑的PPT格式文件，②可编辑的Word版文件；

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26秋七年级语文上册2.《济南的冬天》教案简案

【2027届 · 高一 · 必修1 · 课件PPT+Word】第四章 习题课 指数型函数、对数型函数的性质的综合

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  1. CONNECT:[ UseTime:0.001080s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001503s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000697s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000668s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001270s ]
  6. SELECT * FROM `set` [ RunTime:0.000563s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001473s ]
  8. SELECT * FROM `article` WHERE `id` = 526285 LIMIT 1 [ RunTime:0.001035s ]
  9. UPDATE `article` SET `lasttime` = 1787569464 WHERE `id` = 526285 [ RunTime:0.014720s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000564s ]
  11. SELECT * FROM `article` WHERE `id` < 526285 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001049s ]
  12. SELECT * FROM `article` WHERE `id` > 526285 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001086s ]
  13. SELECT * FROM `article` WHERE `id` < 526285 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004164s ]
  14. SELECT * FROM `article` WHERE `id` < 526285 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.010774s ]
  15. SELECT * FROM `article` WHERE `id` < 526285 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003865s ]
0.205109s