Question

y ≥ 0
y < x
x + y < 6

Answer 1

Shaded region represents the inequalities.

Also, all the points on the line segments AB and AC including the corner points (A,B,C) do not satisfy all three ineqaulities. Hence, all these points are not included in the solution of these ineqaulities (shaded region).

We can even calculate the shaded area.

Shaded Area = ½(3×6) sq. units = 9 sq. units

Hope, this helps...