Question

What happens to a graph when it is reflected over the line y = x?

Select an answer

A.
The graph is stretched horizontally.


B.
The graph becomes a straight line.


C.
The graph moves up by one unit.


D.
The coordinates of points are swapped.

Answer 1

D. The coordinates of points are swapped.

Reflection across the line y = x maps each point (x, y) to (y, x). For example, (2, 5) becomes (5, 2).