we have the equation
-4y=8-x
Rewrite in standard form
x-4y=8
Find out the intercepts
step 1
y-intercept
For x=0
substitute
0-4y=8
-4y=8
y=-2
the y-intercept is the point (0,-2)
step 2
x-intercept
For y=0
x-4(0)=8
x=8
the x-intercept is the point (8,0)
step 3
Plot the intercepts and join them to graph the line