April 2019
Beginner
368 pages
9h 38m
English
Content preview from Pre-Calculus Workbook For Dummies, 3rd Edition
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Chapter 5
Exponential and Logarithmic Functions
IN THIS CHAPTER
Figuring out exponential functions
Looking at logarithmic functions
Using exponents and logs to solve equations
Working with exponential word problems
Exponential growth is simply the idea that something gets bigger and bigger (or, in the case of exponential decay, smaller and smaller) very fast. Exponential and logarithmic functions can be used to describe growth or decay. These functions have many practical applications, such as determining population growth, measuring the acidity of a substance, and calculating compound interests and loan payments. In addition, they’re central to many concepts in calculus and other mathematical arenas.
In this chapter, you practice solving equations, simplifying expressions, and graphing exponential and logarithmic functions. In addition, you practice manipulating functions to solve equations and practically applying the concepts to word problems.
Working with Exponential Functions
Exponential functions are functions in which the variable is in the exponent. When the base of the ...
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