LOGARITHMIC FUNCTIONS Mr. Velazquez
Honors Precalculus
DEFINITION OF LOGARITHMIC FUNCTIONS
LOGARITHMIC AND EXPONENTIAL FORMS
To change from logarithmic to the more familiar exponential
form, use the following pattern:
(start here)
BASIC LOGARITHMIC PROPERTIES
Examples: log8 8 = 1 log6 1 = 0
Examples: log7 72 = 2 5log58 = 8
GRAPHS OF LOGARITHMS
GRAPHS OF LOGARITHMS
GRAPHS OF LOGARITHMS
EXAMPLE:
EXAMPLE:
EXAMPLE:
DOMAIN AND RANGE
EXAMPLE: Find the domain and range of 𝑓 𝑥 = log4 𝑥 − 5
THE COMMON LOGARITHM
THE COMMON LOGARITHM
THE NATURAL LOGARITHM
CLASSWORK & HOMEWORK
Homework:
Logarithms HW 1
(Math XL)