Point M is the point of reflection for point A. Find the coordinates of the image A' A(-3, 2) M(-1,5)

You know that the distance between each point on the preimage and the point of reflection M(-1,5) are equal to the distance between M(-1,5) and each point on the image.
So, you can observe this graph
Therefore, the coordinates of the image A' will be (1,8).