What are Logarithms?
Change to exponential functions
How does the number in front of the x in y=a^x affect the curve?
The bigger the number the bigger the curve
What is the equation for logarithms?
loga n = x
a^x = n
What is the multiplication law of logarithms?
loga xy = loga x + loga y
What is the division law of logarithms?
loga (x/y) = loga x - loga y
What is the power law of logarithms?
loga (x)^k = kloga x
What is the fourth law of logarithms?
loga (1/x) = -loga x
How do you draw a logarithm graph?
y = ax^n logy = logax^n logy = nlogx + loga y = mx + c
How do you solve exponentials? e^x = 2
e^x = 2 Ine^x = In2 xIne = In2 Ine = 1 x = In2
How do you solve exponentials? In^x = 3
In^x = 3 e^Inx = e^3 Inxe = e^3 x = e^3
What is exponential logarithms formula?
Inx = y x = e^y
What is In?
natural logarithms
under x on calc