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题目内容 （请给出正确答案）
多选题
Which of the following equations are for lines which are perpendicular to the line y=2x+4?
A

2y +x = 5

B

2y –x = 3

C

x + 2y = 7

D

x – 2y = 4

E

4y +2x = 0

参考答案

参考解析
解析：
直线y=2x+4的斜率为2，所以与其垂直的直线的斜率为-1/2，故本题选择ACE三项。
更多 “多选题Which of the following equations are for lines which are perpendicular to the line y=2x+4?A2y +x = 5B2y –x = 3Cx + 2y = 7Dx – 2y = 4E4y +2x = 0” 相关考题
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