Plz show steps.thx;]
Link of the math question:
http://img683.imageshack.us/img683/19/y0001.jpg
F.4functions and graphs
2009-11-19 6:59 am
回答 (1)
2009-11-19 7:15 am
✔ 最佳答案
(a) The x-intercept is (-1, 0)
Sub into equation y = -3(x + a)/x
0 = -3(-1 + a)/(-1)
0 = 3(a - 1)
a - 1 = 0
a = 1
The equation becomes y = -3(x + 1)/x
(b) when y = -3, sub into the equation again,
-3 = -3(x + 1) /x
x = x + 1
1 = 0 which is impossible
Therefore the graph does not intersect with the line y = -3
收錄日期: 2021-04-24 10:12:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091118000051KK01570