What is the rule of reflection for y = 2?

(x,2) > (2,x)

Step-by-step explanation:

y=x

(x,y) > (y,x)

Example: x − 2 = 4

When we put 6 in place of x we get:

6 − 2 = 4

which is true

So x = 6 is a solution.

How about other values for x ?

For x=5 we get "5−2=4" which is not true, so x=5 is not a solution.

For x=9 we get "9−2=4" which is not true, so x=9 is not a solution.

etc

In this case x = 6 is the only solution.