The given inequality,
x + y ≥ 4 ...(i)
Step 1: Consider inequation as a strict equation i.e. x + y + 4
Step 2: Find the points on x-axis and y axis i.e
Step 3: Plot the graph using the above table.
Step 4: Take a point (0, 0) and put it in the given inequation (i), we get 0 + 0 ≥ 4, which is false, so shaded region will be away from the origin
Here, shaded region shows the inequality x + y ≥ 4.