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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