扫描二维码，直接登录
题库 / GMATAdvanced-DS-42
In the standard (x, y) coordinate plane, what is the slope of the line containing the distinct points P and Q?
(1)Both P and Q lie on the graph of |x|+|y| =1
(2)Both P and Q lie on the graph of |x+y|=1
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.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
(2) P，Q在线y=-x+1或y=-x-1上，这是两条平行的线。问的是通过P, Q的线的斜率是多少？
如果P，Q在前面求的两条线的其中一条上，则斜率是-1；如果P，Q分别在两条线上，则有无数条斜率。
登录 或 注册 后可以参加讨论