Giải thích các bước giải:
a. \(y=2x\)
. Cho x=0 thì y=0 đồ thị qua O(0;0)
. Cho x=1 thì y=2 đồ thị A(1;2)
b. \(y(-0,5)=f(-0,5)=2.(-0,5)=-1\)
\(y(\frac{3}{4})=f(\frac{3}{4})=2.\frac{3}{4}=\frac{3}{2}\)
`b)f(-0,5)=2.(-0,5)=-1`
` f(3/4)=2. 3/4=3/2`
Giúp em đi mai em phải nộp Làm xong em cho vote 5*
Ex6. Match the sentences. 1. What are you doing this weekend? a. They are dark brown. 2. What does your English teacher look like? b. It’s Sandra. She is my new friend. 3. What is Mary like? c. I’m visiting my grandparents. 4. Where are the kids? d.She’s slim and has long blond hairand blue eyes. 5. Can you help me with my homework, please? e. Sound great! I’d be happy to. 6. Would you like to Join usata party on Sunday? f. She’s kind, active and sensitive. 7. What colour are his eyes? g. They are playing in the playground. 8. Who is that girl? h. Sorry, I can’t. I’m busy. Ex7. Choose the word which best fits each gap. Wickedly Wonderful is a small summer (1) ______ in the UK for children aged 6 to 13 years old. The children (2) ______ a week outdoors at the camp, making new friends and learning new activities (3) ______ having a lot of fun. (4) ______ the summer camp, they sail, horse ride, kayak, enjoy games on the beach and the beach (5)______, swim, surf, go crabbing and ride bikes. Children will enjoy holidays with Wickedly Wonderful, and (6) ______ are holidays that they will remember forever! 1. a. term b. course c. camp d. holiday 2. a. take b. spend c. use d. pass 3. a. which b. what c. where d. while 4. a. At b. In c. On d. During 5. a. firing camp b. campfire c. fire camp d. firing camp 6. a. this b. that c. these d. those Ex8. Read the passage and answer the questions. Hi, my name’s Mai. And this is a picture of me and my friend Vy. Vy is the girl who has a bow in her hair. She is a pretty girl with dimpled cheeks. She and I first met at primary school and we became great friends. She is kind, jolly and helpful. We are classmates again this year and we go to school together each morning. Vy likes to joke and play games. She lives near my house. In the evenings, we usually meet at my house. We sit in the garden and read story books. Vy is good at Mathematics. So, she often helps me with my Mathematics homework. At the moment, Vy and I are doing our English project in my room. We both like English. This Sunday morning we are going to our school English club. I hope Vy and I will be in the same class again next year. I like her very much and she is my best friend. 1. Who is the girl on the right of the picture? 2. Are Mai and Vy in different classes now? 3. Where did they first meet? 4. What is Vy like? 5. What does Vy like? 6. What do Vy and Mai usually do in the evenings? 7. Where are they now? 8. What are they doing this Sunday morning? Ex9. Đặt câu hỏi cho phần gạch chân. 1.You go to the supermarket to buy beef. .................................................................................. 2. Lan is going to school with her friends. .................................................................................. 3. They went to the zoo last weekend. .................................................................................. 4. He always watches the films on T.V. .................................................................................. 5. She stays there for two days. ………………………………………………….…. 6. My daughter plays tennis every morning ……………………………………………………….. 7. This boy usually goes to work by car. …………………………………………….…………. 8.Van Hau likes drinking SOSOCA water. ....................................................................................... 9.Nam studies English in China with her sister ……………………………………………………….. 10. We want two English books. ………………………………………………………..
tìm số nguyên x, y biết xy-5y-2x=-41
Bài 3. Cho biết từ ngữ in đậm trong đoạn trích sau có tác dụng liên kết câu chứa chúng với câu nào? Đó là phép liên kết nào? Dường như vật duy nhất vẫn bình tĩnh, phớt lờ mọi biến động chung là chiếc kim đồng hồ. Nó chạy, sinh động và nhẹ nhàng, đè lên con số vĩnh cửu. Còn đằng kia, lửa đang chui vào bên trong dây mìn, chui vào ruột quả bom… (Phần in đậm NÓ,CÒN) Mong mn giúp
Do you dance ? It is said that dancing is one of the best froms of exercise ... can be done
1/Tính : a (-6-2).(-6-2) b (7.3-3): (-6) c (-5+9)x (-4) d 72 : (-6.2+4) e -3.7-4 .(-5)+1 2/ tính hợp lý
Mn giúp mik vs tối mik phải nộp
Một xe máy đi từ A lúc 8giờ 37phút với vận tốc 36km/giờ. Đến 11giờ 7phút, một ô tô cũng đi từ A đuổi theo xe máy với vận tốc 54km/giờ. Hỏi ô tô đuổi kịp xe máy lúc mấy giờ ? tính chuyển động cùng chiều
Trên tia Ax lấy hai điểm B và C sao cho AB = 4,5cm, AC = 9cm. a) Tính độ dài đoạn thẳng BC. b) Chứng tỏ B là trung điểm của đoạn thẳng AC. c) Trên tia đối của tia Ax lấy điểm I sao cho A là trung điểm của IB. Tính IC.
tính nhanh: a, 48.19+48.115+134.52 b, 27.121-87.27+73.34 c, 136.23+136.17-40.36 tính tổng: a, S1=1+2+3+...+999 b, S2=10+12+14...+2010 c, S3=21+23+25+...+1001 d, S5=1+4+7+...+79 e, S6=15+17+19+21+...+151+153+155
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến