4.4&4.5 Logarithmic Functions Flashcards
1
Q
b is always a ____,_____ number
A
positive, real
2
Q
n is always____
A
positive
3
Q
b^e=n
A
log,b,n=e
4
Q
how to read it
A
log base b of n equals e
5
Q
logarithms are defined so that we can solve for the ___ in equations
A
exponent
6
Q
logarithmic functions are the _____ of ___ functions
A
inverses, exponential
7
Q
2 special logarithms
A
common log: log base 10.
natural log: log base e
8
Q
always make sure __ ____ ____ are there; add a ____ if needed
A
all 4 parts; ?
9
Q
write ln as
A
log base e
10
Q
whenever you are stuck,
A
switch the form
11
Q
asymptote of logarithmic functions
A
y-axis, x=0
12
Q
reflect over the line
A
x=y
13
Q
log of mn =
A
log of m+log of n
14
Q
log of m/n=
A
log of m-log of n
15
Q
log of m^n=
A
n log of m
