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题库 / GMATLA-DS-75
In the xy-plane, line l and line k intersect at the point (16/5, 12/5). What is the slope of line l?
(1) The product of the slopes of line l and line k is –1.
(2) Line k passes through the origin.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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题目的答案错了，已修正。
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我也觉得答案错了。-1以为两直线垂直。然后两条件在一起的时候可以求出来的。
同意选C啊。2个合在一起可以求出斜率啊登录 或 注册 后可以参加讨论