What's the missing output value ? ?

To get 7 from 3 is to add 4
to get 11 from 7 is to add 4, etc.
so 5 -> 9 because 5+4

answer is D

The answer is D (9). Why? In the function f(x) = x+4, if the input is x=5, then f(x) = y = should be 5+4 =9

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph

there is a hike in both the graphs so the graphs are increasing on their domain.x-intercept of log x and log 6x are differentthere is a vertical asymptote of both the graphs so there is no y-interceptas both the graphs are increasing so there is no horizontal asymptote