Question 971511
They are parallel.

graph 1 goes through (0,3)--that is what the +3 means.  It goes up 2 and over 1 or down to and to the left 1.  Two other points are (1,5) and (2,7)

graph 2 goes through (0,1).  It goes through (-1,-1) and (-2,-3)

{{{graph (300,300,-10,10,-10,10,2x+1,2x+3)}}}