Презентация урока алгебры "Понятие решения системы неравенств с одной переменной" 8 класс

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Решение неравенств

и систем неравенств

с одной переменной

8 класс.

Кашталова Т.Ю .

х

х

-3

1

Повторение.

1.

Какие неравенства соответствуют промежуткам:

Повторение.

2.

Изобразите геометрическую модель промежутков:

х

-2

7

4

х

-5

х

-1

2

х

Повторение.

3.

Какие неравенства соответствуют

геометрическим моделям:

х

-4

17

0

х

-33

х

-1

9

х

Повторение.

4.

Какие промежутки соответствуют

геометрическим моделям:

х

-4

2,5

-1,5

х

5

х

3

8

х

Решаем неравенства.

Решить неравенство – найти значение переменной,

которое обращает его в верное числовое неравенство.

Правила:

1.

<

>

Решаем неравенства.

Решить неравенство – найти значение переменной,

которое обращает его в верное числовое неравенство.

Правила:

2.

<

>

:а

Решаем неравенства.

Решить неравенство – найти значение переменной,

которое обращает его в верное числовое неравенство.

Правила:

2.

:а

                                                                

                                                                

                                                                

                                                                

                                                                

                                                             

                                                

                                                                

                                                                        

                                                                        

                                                                

                                                               

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                        

                                                      

                                                                        

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                              

900×920

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                        

                                                                

                                                                 

                                                                

Смотрите также

                                                            

Урок Русского Языка Картинки

                                                            

Рисунки с Математическими Фигурами

                                                                 

                                                                        

                                                                        

                                                                

                                                                

                                                                    

                                                                

                                                      

                                                                

                                                               

                                             

                                                                

                                                                

                                                                

                                                                

                                     

                                                                

                                                                

                                                              

                                                                        

                                                                

                                                                        

                                                           

                                                                

                                                                        

                                                                

                                                                

                                                                  

                                                                

                                                                

                                                                

                                                    

                                                                     

                                                        

                                                               

                                                                

                                                                

                                                                  

                                                                        

                                                                

                                                                      

                                                                  

                                                                

                                                                        

                                                                

                                                                        

                                  

                                                                

                                                                        

                                                                

                                                               

                                                                

                                                                

                                                      

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                

                                                                

                                                                

                                                  

                                                                

                                  

                                                                    

                                                     

                                                                

                                                                

                                                                

                                     

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                

                                                                      

                                      

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                      

                                                                        

                                              

                                                                

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                        

                                                                

                                                                

                                                                        

                                                                

                                                                

                                                             

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                    

                                                                

                                                                   

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                               

                                                

                                                                

                                                                        

                                                                

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                

                                                                        

                                                

                                                                

                                                  

                                                               

                                                                

                                                                

                                                                

                                                     

                                                                

                                                                        

                                                                

                                                                

                                                                       

                                                                        

                                                                

                                                          

                                                                        

                                                              

                                            

                                                                        

                                                                

                                                                        

                                                                

                                                                

                                                                

                                                               

                                                                

                                                                        

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                        

                                                                

                                                                

                                                          

                                                                    

                                                                        

                                                                        

                                                                

                                                                   

                                                                

                                                     

                                                                

                                                               

                                                               

                                                       

                                                                

                                                                

                                                                        

                                                                 

                                                                

                                                               

                                                                

                                                                        

                                                                   

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                

                                             

                                                                    

                                                                

                                                                

                                                                

                                                                

                                                

                                                                

                                                                

                                                                

                                                                

                                                                        

                                                                

                                                                        

                                                                        

                                                                

                                                                 

                                                               

                                                                        

                                                               

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                

                                                                  

                                                                        

                                                                

                                                                

                                                                

                                                                        

                                                                        

                                                                

                                                                

                                                                        

                                                                

                                                               

                                                                        

                                                                        

                                                                

                                                               

                                                              

                                                                

                                                                

                                                               

                                                                        

                                                                

                                                                

                                          

                                                 

                                                                   

                                                                        

                                                                

                                                                

                                                                

                                                                

                                                                      

                                                                        

                                                                

                                                                        

Школьное образование. Все чудесатей и чудесатей сумасшедшее

Решаем неравенства.

Решить неравенство – найти значение переменной,

которое обращает его в верное числовое неравенство.

Правила:

2.

:а

При делении (умножении) на отрицательное

число знак неравенства меняется.

Решаем неравенства.

1.

-3

х

Ответ:

Решаем неравенства.

2.

-0,5

х

Ответ:

Решаем неравенства.

х

-4

х

10

3

х

Покажите решение на числовой прямой и запишите ответ в виде интервала:

Решаем неравенства.

Запишите ответ в виде интервала:

Решаем неравенства.

Запишите ответ в виде неравенства:

Решаем систему неравенств.

Решить систему неравенств – найти значение

переменной, при котором верно каждое из неравенств системы.

6

3,5

Ответ:

Ответ:

х

Решаем систему неравенств.

Решить систему неравенств – найти значение

переменной, при котором верно каждое из неравенств системы.

9

1

Ответ:

Ответ:

х

Решаем систему неравенств.

Решить систему неравенств – найти значение

переменной, при котором верно каждое из неравенств системы.

-2

Ответ: решений нет

3

х

Решаем систему неравенств.

-5

1

х

0,5

-3

х

Решаем двойное неравенство.

:3

5

7

Ответ:

х

Решаем двойное неравенство.

:-1

-5

3

Ответ:

х

СПАСИБО ЗА УРОК !