Answer: Finding the Domain of a Function Using a Natural Log Write the problem. Let's say you're working with this one: f(x) = ln(x-8) Set the terms inside the parentheses to greater than zero. The natural log has to be a positive number, so set the terms inside the parentheses to greater than zero to make it so. Solve.
Step-by-step explanation:
First what is domain of f/function?
A domain is part of a function f if f is defined as a triple (X, Y, G), where X is called the domain of f, Y its codomain, and G its graph. A domain is not part of a function f if f is defined as just a graph.
Dont understand?
If you understand what it is overall read this
https://www.wikihow.com/Find-the-Domain-of-a-Function or watch this
https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:functions/x2f8bb11595b61c86:introduction-to-the-domain-and-range-of-a-function/v/domain-of-a-function-intro