transformations

👨🏻‍🏫 學術台數學

用戶104644

2010-03-13 4:19 pm

1) if f(x)= (2-x)/ 5x, determine the equation of f^-1(x), the inverse of f(x)

2)the point (8,-5) is on the graph of y=f(x), which point must be on the graph of y=1/ [f(-x)-2]

更新1:

i still dont get 2) why is (5,1/6), and where is 1/6 came from?

回答 (1)

用戶9112

2010-03-13 5:14 pm

✔ 最佳答案

http://img704.imageshack.us/img704/613/43910801.png

圖片參考：http://img704.imageshack.us/img704/613/43910801.png

2010-03-13 13:36:00 補充：
http://img704.imageshack.us/img704/613/43910801.png

2010-03-13 17:11:03 補充：
which part you do not understand?
when x = 5, y = 1/6 isn't it clear?

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