user-avatar
phuongro2k
2 năm trước
: Cho đường thẳng (d1): y = 2x – 3 và đường thẳng (d2): y = – x + 3. a) Vẽ (d1); (d2) trên cùng mặt phẳng tọa độ Oxy. b) Tìm tọa độ giao điểm A của (d1); (d2) bằng phép toán. c) Xác định các hệ số a và b của đường thẳng (d3): y = ax + b (a ≠ 0) biết (d3) song song với (d1) và (d3) cắt (d2) tại một điểm trên trục tung.
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

REVISION UNIT 9-10,11 I.Form of words : 1/ It’s difficult to find ………………………………………….. at busy time ( accommodate) 2/They often use first-aid to ease the victim’s pain and ______________ (anxious) 3/ Waste paper can be …………………. ……………. after being recycling ( use) 4/ Compost is a wonderful …………………………… It helps plants grow ( fertilize) 5/ We are waiting for the ______________________________ of his plane. (arrive) 6/ She gives Lan some first –aid …………………………….. ( instruct) 7/ I want an ………………………………………………………… reply ( immediately ) 8/ The ambulance came and took the ………………… to the hospital ( wound ) 9/ Traditional music is now enjoying a ……………………………………. ( revive ) 10/ Make sure that the needles are ……………………………………………..…. ( sterilize ) 11/. She is a ____________________ in my neighborhood. ( flower) 12/The ________________________is collected and sent to the factories. (glassware) 13/ These products are ……………………………………………..…friendly ( environment) 14/These children enjoy playing ……………………………………………………...toys ( wood) 15/There has been some ……………………………………………………...in employment so far ( reduce ) 16/. There is a _______________ from Ha Noi to Ho Chi Minh city every day. ( fly) 17/ Reduce means not buying products which are ___________________. (package) 18/ Miss White is a ____________________.from” Friends of the Earth”.(represent) 19/. Doctors have succeeded in finding a better _____________________ for the disease. ( treat) 20/. The _________________institute in Nha trang was built many years ago. ( ocean) 21/. Glass is broken up , melted and made into new__________________ ( glass) II. Write the second sentence so that it has a similar meaning to the first one 1. John collects money. Money ________________________________________________________________ 2. Anna opened the window. The window_____ ________________________________________________________________. 2. Please don’t swim in the deep water. Would you mind ________________________________________________________________? 3. I’d like you to go to the shop for me. Will you please __________________________________________________________________? 4. He hurried up to the station because he didn’t want to miss the train. He hurried _________ _____________________________________________________________ 5. Someone planted the trees along the streets yesterday. The trees _______________________________________________________________________. 6. I am very happy that I can join the school football team. I am very happy___ ______________________________________________________________. 7. Do you want me to empty the basket ? Shall I ________________________________________________________________________? 8. I always brush my teeth after meals because I don’t want to have bad teeth. I always brush _________________________________________________________________.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team