Logs

[Pages:28]Logs

? look at y =

Day 1

make a table to values from -3 Sx.3

plot the points

? plot the inverse

-.rats

s s 4,Zwar.- Mn. r? --.3.17.4...trertISMIONIMIN

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Ixr

Apr 5-1:50 PM

Apr 6-7:21 AM

LogDA?N

DN=A

Write each expression in exponential form:

a) log 8 2 = 1/3

b) 7 = log2128

Write each expression In logarithmic form:

a) 12 ? = 1

b) 4.2 = 0.0625

Apr 6-7:27 AM

Log D A in N

Solve: 1)10E158 x

DN al A

2) 1og5625 = x

3) log b 27 = 3

4) log b 64 = 6

5) 1og25 x = - 4

6) log100 x = - 1/2

Apr 6-7:27 AM

a '3

2

Name

Date

Logger DAN

Logger DAN cut his finger and showed his DNA

The logarithmic equation:

The Exponential equation:

LogDA=N

DN=A

Example:

The logarithmic equation:

Log5125=3

The Exponential equation:

5 3 =125

Write in logarithmic form:

1) 82=64

2) 34=81

3) 22=4

4) 4"2=771 :

16

5) 12" = --1 12

3

6) 9 2 =27

7) 16 2=4 10) y=3'

8) 8 32 =

4

11) 5'=6

9) y=ax 12) y= (J)x

Write in Exponential form:

1) log3 x = a

2) log o x = b

3) log s, N = x

4) log, s = t

5) log 2 -1 = --2 4

6) log o 10 = --2

7) log x x 2 = 2

8) log x rc = 8

9) log e 4 = 6

10) log 27 9 = --2 3

11) log, 2 = -- --1 8 3

12) log, 3 = --1-9

Name

LogDA=N

Solve for X: 1) log 2 X = 4

Logs Day 2

Date

DN=A

2) log s X = 2

3) log 3 X = -2

4) log, X = 0

5) log 9, X = -21-

6) log 9 X = -.-1:

7) log 6 X = 0

Solve for X: 1) log x 9 = -2"

8) log 10 X = 7

9)

log 64

X

=2 3-

2) log x 16 = 2

3) log x 64 = 3

4) log x 3 = -2 7) log x 27 = 3

5)

log

x

1 -i-

=

1 --3-

8)

log x

1 -2

=

i -1

6) log x 8 = -3 9) 108x J=lzf

Solve 'c'"' -)(' 1)10%3 23 --..' 'X

,X 2) 10%2 16

4)10%2. 32 -- X

5) loga g -... X

3) logs 4 = X

1 :... x 6) 10%21 9

_,. x

1)10%5 25

X % ) I 0 % 4 9 1

9) loilli 4 = X

Name

LogDA=N

Solve for X: 1) log 2 X = 3

Date Logs Day 3 Class work/ Homework

DN=A

2) log 2 X = 5

3) log3 X = 4

4) log 8 X = 2

3

Solve for X: 1) log x 36 = 2

5) log9 X= --

6) log 8 X = --3 2

2) log x 125 = 3

3

)

log

x

5

=

-- 1 2

4) log x 2 = --31

5) logx = --1

4

6) log x 16 = --2

Solve for X: 1) 1og 2 8 = X

2) log 8 2 = X

3) log 27 3 = X

4) log2 = X

2

8) log3 --1 = X

3

9)

log

r 3

3--1

=

X

^ dr S

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