Step-by-step explanation:
The slope would be 4 (because in y=mx+b form, m = slope)
The y-intercept would be zero (0,0) since b = y-intercept, and there is no b in this equation.
From (0,0) you would rise four to get (0,4) and go over to the right one (1,4)
To make another point, you could go down 4 from (0,0) to get (0,-4) and to the left one to get (-1,-4)
Hope this helps.