Find f(1/3) if f( n ) = 3 n 1
3
1 /3
(A explanation along with the answer would be appreciated because I have no idea how to do this)

answer

see attachment

explanation

the given function is

this function has y-intercept at

-4 and a slope of 2.

note that, the graph has a positive slope.

the graph that represents this function is the straight line that moves upward from left to right.

the graph touches the y-axis at -4.

the correct choice is the graph shown in the attachment.