试题与答案

已知关于x的一次函数y=mx+n．设集合P={-2，1，3}和Q={-1，-2，

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题型：填空题

题目：

已知关于x的一次函数y=mx+n．设集合P={-2，1，3}和Q={-1，-2，3}，分别从集合P和Q中随机取一个数作为m和n，则函数y=mx+n的图象不经过第二象限的概率是______．

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B解析：伦理难题处理的基本原则及步骤。

考点：随机事件及其概率古典概型的定义及计算
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增加：在缺词处加一个漏字符号（），并在其下面写出该加的词。

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