You can put this solution on YOUR website! well there are two ways to do this problem either use the point-slope forumla or the slope intercept formula.
using the point-slope formula we get
y-y1=m(x-x1)
y1 = 4
m = 2
x1 = 6
y-4=2(x-6)
y = 2x-12+4
y = 2x-8
using the slope intercept formula we get
y = mx+b
y = 4
m = 2
x = 6
4 = 2(6)+b
4 = 12+b
-8 = b
y = 2x-8
either way you get the same answer y=2x-8 or if you want it in standard form its 2x-y=8