问题
填空题
已知函数f（x+1）=2x-1，则f（5）=______．
答案
∵函数f（x+1）=2x-1，
∴f（5）=f（4+1）=24-1=8．
故答案为：8．
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已知函数f（x+1）=2x-1，则f（5）=______．
∵函数f（x+1）=2x-1，
∴f（5）=f（4+1）=24-1=8．
故答案为：8．
| 补全对话 | |
Tom: Oh,it looks like a bird. Mary: 1 You know no bird is so big and colourful. 2 Tom: Er... Why not go and have a look? Mary: 3 Tom: You're right Mary. 4 How beautiful it is! Mary: Yes. Whoes kite is it, do you think? Tom: It may be Jim's. He told l11e his kite flew a way this morning. Mary: 5 Tom: Oh. Let's go and bring it back to him. Mary: I agree. He-must be very happy. | |
| 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ |