algebra 2 notes 7-1

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1 Take a guess at what these statements are saying: Now see if you can fill in the blanks: Lsn 71: Let's start with a SUPER FUN puzzle!

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Intro to Logarithms

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Page 1: Algebra 2 Notes 7-1

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Take a guess at what these statements are saying:

Now see if you can fill in the blanks:

Lsn 7­1: Let's start with a SUPER FUN puzzle!

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Def:  A logarithm is ___ ______________.

Say it: __________________________

What it means:

Say it: __________________________

What it means:

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3.786   + 5.419

BECAUSE MULTIPLICATION IS HARD.but addition is pretty easy akshully.

    3.786 x  5.419

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blame this guy

"I was just trying to help!"

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Observe:  5.27 * 1.076 =

1000 * 1000000 =

1024 * 64 =

x    log10(x) x    log10(x) x    log10(x) x    log10(x) x    log10(x) x    log10(x) x    log10(x) x    log10(x) x    log10(x) x    log10

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16.6 * 42.2

Addition with a normal ruler:

Multiplication with a Logarithmic Ruler:

10 10 10 10 10

10 10 10 10 10

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Switching Forms:

"log form" "exponential form"

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Examples of inverse functions...

Exponentiation also has an inverse function:

(the inverse of sine is ________________)

(the inverse of square is _________________)

The inverse of is 

Def:  

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