Question

Rectangle ABCD is reflected over the y-axis. What rule shows the input and output of the reflection, and what is the new coordinate of A'?

Rectangle ABCD is shown. A is at negative 5, 1. B is at negative 5, 3. C is at negative 1, 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)

Answer 1

no problem

Answer 2

the y coordinate will stay the same while the x will be opposite in sign