Explanation:
what do you need to do ? draw the line ? or find some intercepts on the x- or y-axis ? or ?
in any case it is important to bring this into the typical line equation form :
y = ax + b
so,
-4x = -1 + y
we leave y alone on one side
y = -4x + 1
to draw the line you need 2 points.
so, let's find some.
one typical choice is x = 0.
then y = -4×0 + 1 = 1
so, P1 = (0, 1)
and then e.g. let's pick x = 1
then y = -4×1 + 1 = -4 + 1 = -3
so, P2 = (1, -3)
there you have it
mark the two points on the coordinate graph, then take a ruler and draw the line all the way from top left to bottom right so that it goes through the two points.