Help with LOG question please!
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Help with LOG question please!

[From: ] [author: ] [Date: 11-05-26] [Hit: ]
3.4.5. Some points are (-2,9), (-1,......
Given: log 4 = c log 5 = d
Find each of the following in terms of c and d

1- log 20
2- log 16
3- log 4/5
4- log 2
5- the graph of y = (1/3)^x contains what points?

-
1. log (20) = log (4*5) = log 4 + log 5 = c + d
2. log (16) = log (4^2) = 2*log 4 = 2c
3. log (4/5) = log 4 - log 5 = c - d
4. log (2) = log (√4) = log [4^(1/2)] = (1/2)*log 4 = (1/2)*c = c/2
5. Some points are (-2,9), (-1,3), (0,1), (1,1/3), (2,1/9).

The answers together are:

1. c + d
2. 2c
3. c - d
4. c/2
5. ..., (-2,9), (-1,3), (0,1), (1,1/3), (2,1/9), ...

Please choose best answer.
1
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