Two sequences linearly related
One is 6, 24, X
The other is 30, 60, 100
What is X?
How to calculate?
IQ question
2008-05-18 7:58 pm
回答 (1)
2008-05-18 9:24 pm
✔ 最佳答案
linearly related應該是指在笛卡兒坐標可以畫成一條直線吧我地x 坐標係第1個數列
y 坐標係第2個數列
先計個slope
(60-30)/(24-6)=5/3
跟據斜截式
咁我地就可以知道條線係 y = 5/3x
咁我地代100入y
100 = 5/3x
x = 300/5
x = 60
參考: 自己
收錄日期: 2021-04-23 22:20:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080518000051KK00949