Find the domain of the functions y = ln (x-7)

We need to find the domain of the function y = ln (x – 7). Let’s remember the definition. The domain of definition or the domain of the function y = f (x) is the set of values x for which there are values y = f (x). The domain of the function is denoted – D (f) or D (y). If the function has the form y = ln (f (x)), then the domain of definition will be the set of solutions to the inequality f (x)> 0. The domain of this function will be the solution to the inequality x – 7> 0. x> 7; Answer: D (y): x Є (7; + infinity).