After you get the answer to the equation like y=3x+2. would you graph the constant for the slope (2) at -2?

Question is not clear :

To graph

1. find any 2 points of the line , connect and extend.

Easiest points are intercept points.

Y = 3x +2 :

Intercept points:

( 0, 3 ) ( -2/3 , 0 )

2 . Point and slope:

( 0 , 2 ) slope is 3

3 points up , one to the right, to ( 5, 1)

Connect ( 0, 2 ) to ( 5, 1), and extend.