First convert it to Y=
y-x+4=0
y=x-4
The graph has a slope of 1 and the y-intercept is (0,-4)
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y = 0x = y + 2plug 0 in for yx = 0 + 2x = 2
-1.83 . . . . . and . . . . . -1.82
solve for y so if x + y = 0 then y = -x
It is: y = -7 which is a straight line parallel to the x axis
If B=0, then the graph does not depend on the value of y. This is a vertical line at x = C/A