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[Data Sufficiency]

试题详情

题目:

If line k  in the xy -plane has equation, where m  and b  are constants, what is the slope of k  ?
(1) k  is parallel to the line with equation .
(2)   k  intersects the line with equation at the point (2, 7).

选项:

答案:

A

提问:

老师,条件二中直线K垂直于直线y=2x+3,斜率不就是-1/2吗?我的思路有问题?请老师指导,谢谢。

解答:

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解答: sysadmin

提问:

老师,条件二中直线K垂直于直线y=2x+3,斜率不就是-1/2吗?我的思路有问题?请老师指导,谢谢。

解答:

点赞0
阅读1052
解答: sysadmin老师

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