Which function has an asymptote at x= 39

option B :

Step-by-step explanation:

(a)

For exponential function , there is no vertical asymptotes

General form of exponential function is

In the given f(x) the value of k =0

So horizontal asymptote is y=0

(b) lets check with option

To find vertical asymptote we set the argument of log =0  and solve for x

Argument of log is x-39

x-39=0 so x=39

Hence vertical asymptote at x=39

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