问题
填空题
若一次函数y=kx-(2k+1)是正比例函数,则k的值为______.
答案
∵y=kx-(2k+1)是正比例函数,
∴k≠0,-(2k+1)=0,
解得k=-0.5,
故答案为-0.5.
若一次函数y=kx-(2k+1)是正比例函数,则k的值为______.
∵y=kx-(2k+1)是正比例函数,
∴k≠0,-(2k+1)=0,
解得k=-0.5,
故答案为-0.5.
根据上下文的意思补全对话。在方框中选择恰当的句子填入题前括号内。 | |
B: 2.____________ this street, and turn right at the fourth crossing. Go on walking and then turn left at the second crossing. A: 3. _____________ B: About thirty minutes' walk. I think you'd better take a bus. A: 4._____________ B: The No.9 Bus. A: Where shall I get off the bus? B: You must get off at the third stop from here. A: Thank you. B: 5.____________ |