Which is a correct factorization of 391?
(20 - 3)^2
(20 - 3) (20 + 3)
(20 - 9)(20 + 9)
(20 + 3)^2

Let's see,

1.(20 - 3)^2
   (20 - 3)^2= 20 - 3 = 17 * 17 = 289

2.(20 - 3) (20 + 3)
   (20 - 3) (20 + 3) = 20 -3 =17 , 20 + 3 = 23 , (17)*(23) = 391.

3.(20 - 9) (20 + 9)
   (20 - 9) (20 + 9) = 20 - 9 = 11 , 20 + 9 = 29 , (11)*(29)= 319.

4.(20 + 3)^2
   (20 + 3)^2= 20 + 3 = 23 * 23 = 529

#2, (20 - 3) (20 + 3)

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