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8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 ....

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1 8.1 Logarithms Estimate: 10 x = 950
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Page 1: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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8.1 Logarithms

Estimate:

10x = 950

Page 2: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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Page 3: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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The logarithmic function is the inverse of the exponential function. It is used to solve problems involving a variable in the exponent.

Remember:

be=n logbn=e

Note: A log written without a base is assumed to have a base of 10.

10x = 950

Ben the Bunny

ben    the    bne

base                     exponent                      number

Page 4: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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I'm ben.

Express the following in logarithmic form:

be=n logbn=e

Page 5: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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I'm cute, therefore this is fun. That's math, you can't argue with it. 

Express the following in exponential form:

be=n logbn=e

Page 6: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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Why am I upside down?

be=n logbn=eEvaluate the following:

a) b)

c) d)

Page 7: 8.1 Logarithms - WordPress.com€¦ · 01/01/2012  · 8.1 Logarithms Estimate: 10x ... — 125 . log 0.001 = 256 log 3 81 = 4 . log 10000 log 2 0.5 log 6 36 log 2 64 . log 16 4 8

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Solve each of the following equations:

I can haz a karots?

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Pages 380­382#1­24

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