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# Find k and c for each problem? natural log problem?

Find k and c for each problem if:

1) ln abs(y-90) = kt+c and y(0)=1500 and y(1)=1120

2) ln abs(y-10)=kt+c and y(0)=5 and y(2)=6

Where do I begin?

### 2 Answers

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- Anonymous9 years agoFavorite Answer
1. For k...

k = (ln|y - 90| - c)/t

c....

c = ln|y - 90| - kt

I don't get the initial values since you have more than two constants, k and c.

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