Remember that the slope intercept formula is: 
y = mx + b 
m is the slope 
b is the y-intercept 
In this case m is 1/2 and b is 2.
This means that the slope of this line is 1/2 and the y-intercept is (0, 2) or simply 2 
 
 
Hope this helped!
 
~Just a girl in love with Shawn Mendes