Answer
(G)
Work Step by Step
Parallel lines have the same slope. When a line is put in $y = mx+b$ form, the slope corresponds to $m$, or the coefficient of the $x$ term.
Let's show the slopes of each line using this logic:
I. -2
II. 1
III. -1
IV. -2
I and IV have the same slope of -2 and are therefore parallel.
