题目内容：
设函数y=k/x的图像经过点（2，-2），则k=
A．4 B．-4
C．1
D．-1
参考答案：
答案解析：
单选题：设函数y=k/x的图像经过点（2，-2），则k=
- 题目分类：理科数学
- 题目类型：单选题
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B．-4
C．1
D．-1
B．-4
C．1
D．-1
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