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KRAUSE1
KRAUSE1
01.02.2020 18:46 •  Алгебра

Решите методом интервала неравенство
Пример на фото


Решите методом интервала неравенство  Пример на фото

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Ответ:
айлимайли
айлимайли
07.05.2021 01:18

График функции у=а(х-m)2+n можно получить из графика функции у = аx2   последовательно выполняя преобразования, которые мы выполняли на предыдущих уроках 

2)    Отработать умение учащихся по графику описывать свойства  квадратичной функции  на готовых графиках-тренажёрах:  

 -Множество значений функции

-Ось симметрии квадратичной функции 

         -Промежутки убывания функции

-Промежутки возрастания функции

- наименьшее или наибольшее значение функции.

Пример 1. Построить график функции у = (х - 2)2- 3. 

Решение. Выполним построение данного графика по этапам.

построения графика функции у = (х - 2)2- 3

1) Построим график функции у = х2 (пунктирная линия).

2) Сдвинув параболу у = х2, на 2 единицы вправо, получим график функции у = (х - 2)2 .

3) Сдвинув параболу у=(х - 2)2 на 3 единицы вниз, получим график функции у=(х - 2)2 - 3  .

Опишите свойства функции у = (х - 2)2 – 3 по графику.

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Ответ:
1232468689
1232468689
22.04.2021 02:38

b) My friend wasn't waiting for me when I arrived late. 7.a) When did he have the accident? -As he was climbing up the ladder. b) When was he having the accident? -As he was climbing up the ladder. 8.a) l read a book when she sent me an SMS. b) l was reading a book when she sent me am SMS. 9.a) Did you eеat lunch when the fire alarm rang? b) Were you eating luncn when the fire alarm rang. 10.a) lt was a beautiful day The sun shone and there wasn't a cloud in the sky. b) lt was a beautiful day. The sun was shining and there wasn't a cloud in the sky.

Look at the of sentences below. Both of them are grammatically correct. Choose one sentence in each pair, a or b, that is more logical. 1.a) lt rained heavily when I ran for the bus. B) lt was raining heavily when I ran for the bus. 2.a) The rain jjust came into the station when we arrived on the platform. b) The train was just coming into the station when we arrived on the platform. 3.a) He broke his leg while riding his bike at the weekend. b) He was breaking his leg while riding his bike at the weekend. 4.a) While I was watching TV, someone knocked on the window. bjWhile I was watching TV, someone was knocked on the window. 5 a) No wonder she fell off her bike. She didnt Innk here che iwac in

6 Complete the sentences with when or while. 1) The boys were playing football ... the ball flew into the window. 2) Ronny was painting the fence ... the bucket of paint turned over. 3) Denny was putting a tent ... the girls were gathering wood for fire. 4) Rita was sleeping .. the alarm- rang. 5) Nelly was peeling potatоes her sister was cutting chicken into pieces. 6) Nigel was skiing he fell down and broke his leg. 7) They were arguing ... Mrs Elliot entered the room. 8) ... my mother was watching her favorite show on TV, father making coffee. 9) She was tying a letter some mistakes. 10) They were driving towards the village it started clock she found to snow.

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