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标题: 天山7-35 [打印本页]

作者: yiuoioityo    时间: 2004-12-22 07:41     标题: 天山7-35

天山7-Q35: In the xy-plane, what is the x-intercept of the line whose equation is 3y – 4x = 15? A. – 15/4 B. – 4/3 C. 4/3 D. 15/4 E. 5

答案是A 我觉得是D

因为intercept 就是距离

不应该有正负

所以是D


作者: lololo    时间: 2004-12-22 07:44

intercept 為截距,是有正負的,是指和x(or y)相交的座標...




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