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题库 / Prep2007E2-DS-43
Circle C and line k lie in the xy-plane. If circle C is centered at the origin and has radius 1, does line k intersect circle C ?
(1) The x-intercept of line k is greater than 1.
(2) The slope of line k is ~$-\frac{1}{10}$~ .
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）。
截距一般表示为正数，所以在X轴上的交点的横坐标为负也满足
啊，是greater啊……算了一下等于1的时候是俩交点，平移的话可能相交可能相离
啊，是greater啊……算了一下等于1的时候是俩交点，平移的话可能相交可能相离
截距不是距离，有正有负
陈向东书上的定义为正数
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