Question 559953
It is easy to graph lines that are in slope intercept form.

y=x-2 is already in that form.

x-y=4
move x over by subtracting x from both sides
-y=-x+4
Multiply by -1
y=x-4
The slope of both is 1 so they are parallel lines. One with a intercept of -4 and -2

{{{ graph( 300, 300, -10, 10, -10, 10, x-2, x-4) }}}