LOGS/EXPONENTS Flashcards
1
Q
logax = b
A
a^b = x
2
Q
all exponential graphs pass through
A
0,1
3
Q
lnx =
A
logex, x > 0
4
Q
adding logs
A
logxy = logx + logy
logx/y = logx - logy
5
Q
removing power
A
logx^k = klogx
6
Q
change of base
A
loga(x) = logb(x)/logb(a)
loga(x) = 1/logx(a)
7
Q
change y = ax^n to a linear form
A
lny = nlnx + lna
Y = mX + C
8
Q
change linear form to y = ax^n
A
Calculate gradient based on given values
Plug these into lnY and X to find c
note if the coordinates are e.g. (2,4), lnY = 4
remove the logs
9
Q
A