7.4-7.5 Flashcards Preview

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Flashcards in 7.4-7.5 Deck (17):
1

Exponential form and log form

Ex- base ^exponent=#
Log- log(base)^#=exponent

2

What does evaluate
Log(3)^81 mean

Means 3 to what power gives you 81

3

Common log base

Log base 10

4

What is natural base

Log e

5

Inverse ln

Log e

6

Logarithmic function

Y= alog (X-h) +k
B

7

How to find parent of log function

Y= log base to x
So base^y=x

8

How to graph log function

Base^y=x
Plug in y points
Plot them
Translate h and k

9

0

Down and away from y

10

B>1

Up and away from y

11

Log b ^(m*n) =

Log b m+ log b n
Add

12

Log b (m/n) =

Log b m- log b n
Subtract

13

Log h m^n =

N log b m
Distribute
Exponent just goes to front

14

Expand order

Quotient
Product
Power

15

Condense order

Power
Product
Quotient

16

Fix log b 3/7

Log b 3/7
= log b 3- log b 7

17

Change of base formula

Log c a =
Log b a/ log b c