F.4 Maths (Number and Algebra)
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F.4 Maths (Number and Algebra)
2009-11-22 9:26 pm
回答 (1)
2009-11-22 10:17 pm
✔ 最佳答案
(a) log C = m log x + log kConsider (0,2), 2 = 0 + log k
=> k = 100
Consider (-3, 0) 0 = m(-3) + 2
=> m = 2/3
(b) log C = (2/3) log x + log 100
log C = log[100 * x^(2/3)]
C = 100x^(2/3)
(c) log C = (2/3)log 3375 + log 100
log C = 4.352
C = $22500
收錄日期: 2021-04-23 23:19:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091122000051KK00625