"Group of linear inequalities of one variable" PPT courseware Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
| 文件名 如何下载使用 | 下载次数 | Download Points | 下载地址 |
|---|---|---|---|
| "Group of linear inequal... | 14150次 | 0.00 | Free Download |
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Group of linear inequalities of one variable" PPT courseware is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Group of linear inequalities of one variable" PPT courseware, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see
Authoritative PPT Summary
"Group of linear inequalities of one variable" PPT courseware
Recall: 1. What is the solution set of an inequality?
All the solutions of an inequality form the set of solutions to the inequality, which is referred to as the solution set of the inequality.
2. What are the steps for solving linear inequalities of one variable?
Remove denominators, remove brackets, move terms, combine similar terms, and reduce the coefficient of the unknown number to 1.
When expressing the solution set of an inequality on a number line, you should pay attention to:
If it is greater, draw it to the right, if it is less, draw it to the left; if there is an equal sign, draw a solid dot, if there is no equal sign, draw an open circle.
Observe and think:
(1) In the Cartesian coordinate system, when x satisfies what conditions? Point P (3x-9,1+x) is in the second quadrant?
3x-9<0
1+x>0
Similar to a system of equations, two or more such inequalities are combined to form a system of inequalities.
1. The concept of a group of linear inequalities of one variable
(1) What does "one yuan" mean?
It means that the inequality group contains only one unknown number.
(2) What does "once" mean?
Refers to the degree of the unknown in the inequality being 1.
(3) Concept
From several linear inequalities of one variable containing the same unknown number
The resulting set of inequalities is called a set of linear inequalities of one variable.
2. Solution set of linear inequalities of one variable
Please find the solution sets of the two inequalities in the inequality group.
3x-9<0
1+x>0
Solving inequality ①, we get: x<3
Solving inequality ②, we get: x>-1
Concept: The common part of the solution set of all inequalities in an inequality group is called the solution set of this inequality group.
Based on the above solution process, what do you think are the general steps to solve a system of linear inequalities of one variable?
Steps to solve a system of linear inequalities of one variable:
(1) Find the solution set of each inequality in the inequality group;
(2) Use the number line to find the common parts of the solution sets of these inequalities;
(3) Based on the common parts of the solution sets of several inequalities, write the solution set of this inequality group.
(1) Concept
1. An inequality group consisting of several linear inequalities of one variable is called a group of linear inequalities of one variable.
2. The common part of the solution sets of several linear inequalities of one variable is called the solution set of the group of linear inequalities composed of them.
3. The process of finding the solution set of a set of inequalities is called solving a set of inequalities.
(2) Methods for solving simple linear inequalities of one variable:
(1) Find the solution set of each inequality in the inequality group
(2) Use the number line to find the common parts of the solution sets of these inequalities
(3) Based on the common parts of the solution sets of several inequalities, write the solution set of this inequality group.
(If the common part cannot be found, the inequality group has no solution)
Utilization rules:
If the same is bigger, choose the bigger; if the same is smaller, choose the smaller;
Look in the middle between big and small, big and small, there is no solution.
practise
1. If the inequality group -2＜x≤4, x+m＞1 has 4 integer solutions, find the value range of m? What if there is no solution?
2. If the inequality group x-a≥0,3-2x>-1 has 3 positive integer solutions, find the value range of x?
Keywords: Teaching courseware for the group of linear inequalities in one variable, Qingdao edition eighth grade mathematics volume PPT courseware download, download of the eighth grade mathematics slide courseware, download PPT courseware for the group of linear inequalities in one dollar, .PPT format;
For more information about the "Group of linear inequalities of one variable" PPT courseware, please click the "Group of linear inequalities of one variable" ppt tag.
"Group of linear inequalities of one variable" PPT courseware 3:
"Group of linear inequalities in one variable" PPT courseware 3 Knowledge review 1. Definition of a group of linear inequalities in one variable 2. Solution set of a group of linear inequalities in one variable 3. Methods of solving simple groups of linear inequalities in one variable (1) Find the solution to each inequality in the inequality group Set (2) to find the inequality..
"Group of linear inequalities of one variable" PPT courseware 2:
"Groups of linear inequalities of one variable" PPT courseware 2 Learning objectives Knowledge and skills: 1. Understand the concepts and significance of groups of linear inequalities of one variable and their solution sets. 2. Be able to solve linear inequalities of one variable; be able to use the number line to find the solution set of inequalities. Process and Methods: Understand one...
"Solving word problems of column inequalities (groups)" linear inequalities of one variable and groups of linear inequalities of one variable PPT courseware 2:
"Solving Word Problems of Column Inequalities (Group)" PPT Courseware 2 of linear inequalities of one variable and groups of linear inequalities of one variable 2 Summary of key points 1. The general steps for solving word problems using equations (sets): (1) Review the problem; (2) Set up the elements; (3) Find the equivalence relationship involving the unknowns; (4) List the equations..