Cho parabol (P) y=\(-x^2\) và đường thẳng d: y=mx-2. C/m rằng với mọi giá trị của m thì d luôn cắt (P) tại hai điểm phân biệt

Cho parabol (P): \(y=x^2\) và đường thẳng (d): y=3x+m+1. Tìm m để đường thẳng d cắt parabol (P) tại hai điểm phân biệt

C/m (d):y= \(x+\dfrac{1}{2}\) và (P): y=\(-\dfrac{1}{2}x^2\) tiếp xúc nhau. Tìm tọa độ giao điểm của chúng

Cho hàm số y=\(3x^2\) có đồ thị hàm số là Parabol (P) và đường thẳng (d):y=x+4. C/m (d) cắt Parabol (P) tại hai điểm phân biệt 

Xác định tọa độ giao điểm của (P):y=\(\dfrac{2}{3}x^2\) và (d):y=x+3 bằng  phương pháp đại số và đồ thị

II/ (3,0 points) Choose the best word or phrase to complete the following sentences. Write the letter A, B, C or D on the answer sheet.

1. This machine _______ used since last week.

A. has been B. is C. was D. will be

2. If he _______ hard, he will pass his math test next week.

A. study B. studies C. studied D. is studying

3. We _____ go swimming together when we ______ in the village.

A. used to/lived B. used to/live C. are used to/lived D.get used to/lived

4. My brother got wet ________ he didn’t bring the umbrella with him.

A. but B. so C. because D. and

5. Mai made a big beautiful cake _______ her mother’s birthday.

A. by B. in C. at D. on

6. They say that solar energy doesn’t cause _________.

A. pollution B. pollute C. polluted D. pollutant

7. Peter fell over while he _______ basketball.

A. is playing B. was playing C. played D. plays

8.The people _______ live in England speak English.

A. whom B. which C. who D. whose

9. Be _______! He is looking at you.

A. carefully B. care C. careful D. carelessly

10. According to the weather _______, it will be raining tonight.

A. forecasting B. forecasted C. forecaster D. forecast

11. Jane speaks English _______ than you do.

A. more fluently B. more fluent C. more faster D. more better

12. Let’s go out for a walk, _________ ?

A. don’t we B. do we C. shall we D. will we

13. He made an interesting speech in the opening _______.

A. competition B. ceremony C. preparation D. solidarity

14. Due to the bad weather, the flight to Manchester was _______.

A. taken off B. cut down C. turned down D. put off

15. Nam: “Congratulations on your success!” Hoa: “__________.”

A. You’re welcome B. No, thanks C. That’s very kind of you D. Yes, of course

I/ (1,0 point) Choose the word in each group that has the underlined part pronounced differently from the rest. Write the letter A, B, C or D on the answer sheet.

1. A. Wanted B. Decided C. Needed D. Washed

2. A. Eats B. Stops C. Lives D. Cooks

3. A. Many B. Fat C. Man D. Cat

4. A. Husband B. Humour C. Hurry D. Hundred

5. A. Century B. Structure C. Infectious D. Question

IV/ (1,0 point) Choose the word that best fits the blank space in the following passage. Write the letter A, B, C or D on the answer sheet.

If you are (1) ______ to someone's house for dinner in the United States, you should (2) _______ a gift, such as a bunch of flowers or a box of chocolates. If you give your host a wrapped (3) ______, he or she may open it in front of you. Opening a present in front of the gift-giver is considered (4) _______. It shows that the host is excited about receiving the gift and wants to show his/her appreciation to you immediately. (5) ______ the host doesn't like it, he or she will tell a "white lie" and say how much they like the gift to prevent the guest from feeling bad.

1. A. called B. invited C. calling D. inviting

2. A. take B. give C. bring D. make

3. A. gift B. gifts C. flower D. flowers

4. A. funny B. sad C. rude D. polite

5. A. Although B. But C. Because D. So