Skip to main content
Ch. 4 - Exponential and Logarithmic Functions
Chapter 5, Problem 10

In Exercises 9–20, write each equation in its equivalent logarithmic form. 5^4 = 625

Verified Solution

Video duration:
1m
This video solution was recommended by our tutors as helpful for the problem above.
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Exponential Form

Exponential form expresses a number as a base raised to a power. In the equation 5^4 = 625, 5 is the base, 4 is the exponent, and 625 is the result of the exponentiation. Understanding this form is crucial for converting to logarithmic form.
Recommended video:
6:13
Exponential Functions

Logarithmic Form

Logarithmic form is the inverse of exponential form and expresses the relationship between the base, exponent, and result. The logarithmic form of the equation 5^4 = 625 is log base 5 of 625 equals 4, written as log₅(625) = 4. This transformation is essential for solving problems involving exponents.
Recommended video:
7:30
Logarithms Introduction

Change of Base Formula

The change of base formula allows the conversion of logarithms from one base to another, which is useful when calculating logarithms on calculators that may not support all bases. The formula is logₐ(b) = logₓ(b) / logₓ(a), where x is any positive number. This concept is important for understanding how to manipulate logarithmic expressions.
Recommended video:
5:36
Change of Base Property