Final answer:
When polygon ABCD is translated 4 units to the right, the vertex will be located in Quadrant I.
Step-by-step explanation:
When polygon ABCD is translated 4 units to the right, the vertex will be located in Quadrant I. In the coordinate system, the x-axis represents horizontal movement and the y-axis represents vertical movement. Since the polygon is moved to the right, its x-coordinate will increase while its y-coordinate remains the same. Since the x-coordinate is positive and the y-coordinate is unchanged, the vertex will be located in Quadrant I.