Answer:
 y = 2
Explanation:

The slope-intercept form the equation of the line:
y = mx + b
Two lines are parallel if they hav the same slope.
no x in given line means m = 0 ⇒ y = b
The line goes through P so: 

2 = b
b = 2
so ithe equation of line parallel to given is:
 y = 2