Transcript text: What is the domain of $g(x)=\ln (5 x-13)$ ?
Solution
Solution Steps
To find the domain of the function \( g(x) = \ln(5x - 13) \), we need to determine the values of \( x \) for which the argument of the natural logarithm (i.e., \( 5x - 13 \)) is greater than 0. This is because the natural logarithm is only defined for positive arguments.
Step 1: Identify the Argument of the Logarithm
The function \( g(x) = \ln(5x - 13) \) requires that the argument \( 5x - 13 \) be greater than 0 for the logarithm to be defined. Therefore, we set up the inequality:
\[
5x - 13 > 0
\]
Step 2: Solve the Inequality
To solve the inequality, we isolate \( x \):
\[
5x > 13
\]
\[
x > \frac{13}{5}
\]
Step 3: Express the Domain
The solution indicates that \( x \) must be greater than \( \frac{13}{5} \). Thus, the domain of the function \( g(x) \) can be expressed in interval notation as:
\[
\left( \frac{13}{5}, \infty \right)
\]
Final Answer
The domain of \( g(x) = \ln(5x - 13) \) is \(\boxed{\left( \frac{13}{5}, \infty \right)}\).