Final answer:
The given transformation is a reflection, where each point is reflected across the x-axis.
Step-by-step explanation:
The transformation of the points (-19, -5) to (-19, 5) is a reflection.
In a reflection, each point on a figure is reflected across a line, called the line of reflection. The line of reflection acts as a mirror, causing each point to be reflected on the opposite side of the line. In this case, the line of reflection is the x-axis, and the y-coordinate of each point is flipped to its opposite value.
So, in the given transformation, the x-coordinate remains the same (-19), and the y-coordinate changes from -5 to 5.