Are these correct?

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

How does reflecting or rotating a figure change the interior angles of the figure?