Question 523008
You can simplify by dividing both sides by 2.
x -2y = 4
.
Subtract x from both sides.
-2y = -x + 4
.
Divide by -2 to get the equation into slope-intercept form.
y = x/2 + 2 = (1/2)x + 2
.
The slope (m) = 1/2.
.
When x = 0, y = 2:  (0,2), which is the y-intercept
when x =-4, y = 0:  (-4,0), which is the x=intercept
.
With two points you can graph it.
.
{{{ graph(500,500,-5,5,-5,5,x/2+2) }}}