The line of reflection that maps one shape into the other is line m.
<h3>What is the name of the line of reflection for the pair of figures?</h3>
The line of reflection is the line that maps one heart into the other heart. Such that the line must lie exactly between the two shapes, and divide the plane into two equal images.
By looking at the given image, we can see that the line of reflection that maps one heart into the other is the line M.