Question 1013268
Okay, sure...
Parallel lines have equal slopes.  That means the line you want has a slope of 2 also.
Now plug your info into y = mx + b and find b...here goes...
2 = (2)(4) + b
2 = 8 + b
b = -6
Now plug that into y = mx + b, with the slope you have and get
y = 2x - 6