On XY plane. If a line goes through Point A (A,5), Is the slope of the line <0?
a. Line goes through (0, -2)
b. Line goes through (5, A)
b,不知a可否等于5
这题应该选e还是b?作者: suse 时间: 2002-12-15 23:18
e,因为如果A=5，B也求不出答案，作者: sylvia 时间: 2002-12-16 10:18
谢谢！偶也觉得是E.呵呵
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