数学一道 救救我吧 急急急 谢谢了

guo573874201

Lines n and p lie in the xy-plane.Is the slope of line n less than the slope of line p ?
(1)Lines n and p intersect at the point (5,1).
(2)The y-intercept of line n is greater than the y-intercept of line p.
答案选C  怎么算的呢  

zhengzoe

额…画图看吧，两个单独不满足很明显，两个综合起来看，固定点（5,1）发现不管斜率是正是负n的斜率都是小的那个。我就只会这么每种情况的画图，求nn解释哇

syc057

画图最直观和简单