Answer:
y≥x, y≥3 and y≤7
Explanation:
From the figure, it can be seen that the line passing through origin O is the straight line passing through origin with the inequality y≥x.
y≥3 and y≤7 are the constant lines passing through the Y axis.
Hence, y≥x, y≥3 and y≤7 are the set of the inequalities that defines the trapezoid ABCD.