Remember that the slope intercept formula is:
y = mx + b
m is the slope
b is the y-intercept
If lines are parallel then they have the same slope (m)
This means that the slope of the line will be 2
y = 2x + b
Now we must find b
To do that you must plug in the point the line goes through in the x and y of the equation.
(1, 5)
5 = 2(1) + b
5 = 2 + b
3 = b
y = 2x + 3
Hope this helped!
~Just a girl in love with Shawn Mendes