Xét chiều biến thiên của các hàm số sau trên tập xác định của nó y=√x-2

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1 Tom said to the girl: "When did you have this picture taken?" => Tom asked the girl...................................................................................................................... 2 " We shall go somewhere for a cup of coffee after class.” => Tom said. ...................................................................................................................... 3 She asked me, "Have you ever seen a flying saucer?" => She asked me...................................................................................................................... 4 James said: "Do you want me to type this letter for you now?" => James asked me...................................................................................................................... 5 Helen said, "I'll have to find a better job. I can't make both ends meet." => Helen said that ...................................................................................................................... 6 He said to her " I am waiting for you at this moment." => He told her that ...................................................................................................................... 7 The boy said to his mother: "When shall we have lunch? I'm very hungry." => The boy asked his mother...................................................................................................................... 8 He said, "I don't understand why she has refused to join us on the trip." => He said...................................................................................................................... 9 Mr Brown said to his wife, "I don't feel like going out this evening.” => Mr Brown said that................................................................................................................................... 10 “It is raining too hard to go out so we can’t go out." => John said......................................................................................................................................................: ai giúp mình làm bài này với ạ