Final answer:
The vertices of the feasible region are (0, 0), (600, 1000), and (700, 1000). The production levels that yield the maximum profit are (600, 1000), with a maximum profit of $13,000.
Step-by-step explanation:
The vertices of the feasible region are (0, 0), (600, 1000), and (700, 1000). These points satisfy the constraint x + 2y ≤ 1400. To find the production levels that yield the maximum profit, we need to evaluate the profit function at each of the vertices. By substituting the x and y values of each vertex into the profit function P = 14x + 22y - 900, we find that the maximum profit is $13,000, which occurs at the vertex (600, 1000).