Exponential Form
Log39=2
32=9
122=144
Log12(144)=2
log2x=3
x=8
3x=27
x=3
log2x=3
What is the base?
2
logyx=-8
y-8=x
64(1/2)=8
Log64(8)=1/2
logx64=6
x=2
1/4=42x
x=(-1/2)
log2x=3
What is the exponent?
3
log22515=1/2
2251/2=15
9(-2)=1/81
Log9(1/81)=-2
log(2x+2)=3
x=499
81=3(5)(x-7)+6
x=9
log2x=3
What is this form?
logarithmic
log√10=1/2
101/2=√10
100=1
Log(1)=0
ln(x+6)-3=-5
e-2-6
32x=17
log17/2log3=x
log2x=3
What is the subscript?
2
ln5=1.609
e1.609=5
e^3=20.086
log25(1/5)=3x
x=(-1/6)
2e(4x-1)-3=15
(ln9+1)/4=x
What is the formula to change this base?
log23
log3/log2