Question

Trapezoid ABCD is reflected over the line y = x. What rule shows the input and output of the reflection, and what is the new coordinate of A'?

Trapezoid ABCD is shown. A is at negative 5, 1. B is at negative 4, 3. C is at negative 2, 3. D is at negative 1, 1.

(x,y)→(y,-x); A' is at (1, 5)

(x,y)→(y,x); A' is at (1, -5)

(x,y)→(-x,y); A' is at (5, 1)

(x,y)→(-x,-y); A' is at (5, -1)