Note that the points (0,1) and (1,0) are on the boundary of the graph
The equation of an equality would be this
y = [ (0 - 1) / (1 - 0) ] x + 1
y = [ -1/1]x + 1
y = -x + 1
We need to turn this into an inequality [ I'm assuming that the line is solid ]
So we either have
y ≤ - x + 1 or y ≥ -x + 1
To see which inequality is correct....note that the point (0,0) is in the feasible area
So
0 ≤ = -0 + 1
0 ≤ 1 is true......so the correct inequality is
y ≤ - x + 1
