一次函数y=（k+2）x+k2﹣4的图象经过原点，则k的值为

题干

一次函数y=（k+2）x+k²﹣4的图象经过原点，则k的值为（）

A：2

B：﹣2

C：2或﹣2

D：3

上一题下一题 0.0难度选择题更新时间:2017-09-06 11:49:52

A

根据短文理解，选择正确答案。

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