Question

the vertical symptom of the function y=ln(x-6)+5 is

Answer 1

I suppose you refer to vertical asymptote. Symptom is what a patient tells a doctor what he/she feels abnormal about health.

Vertical asymptotes are typically found when the denominator of a rational function becomes zero.
In the case of a log function, the vertical asymptote is found when the argument of the log function is zero.
For example, if
g(x)=log(bx+c)+h
the g(x) has a vertical asymptote when (bx+c)=0.
Apply this to your given problem and you'd find the value of x for which there is a vertical asymptote.

Answer 2

thanks m8