Respuesta :
Answer:
(2c + 2a, 2b)
Step-by-step explanation:
The plot attached is missing in the question.
The x-coordinate of the fourth vertex is the combination of the x-coordinate of the second and third vertex, that is, 2c + 2a. The y-coordinate of the fourth vertex is the same y-coordinate as the other point not laying on the x-axis, that is, 2b.