We can see from the picture that the image, A'T'M'H', is the same distance from the y-axis as ATMH. We can also see that it is up the same distance vertically as the pre-image.
The x-coordinates of the image are negated from the pre-image; this means it is a reflection across the y-axis.
Step-by-step explanation: The domain of a graph is how far the x value can go left or right. Because this is a horizontal line, the domain or x could be any value.
