What is an ordered pair for the solution of y equals x-4?

Answer 1

There are an infinite number of them.

Here are a few:

x=0, y=-4

x=1, y=-3

x=2, y=-2

x=3, y=-1

x=4, y=0

x=5, y=+1

x=6, y=2

x=7, y=3

x=8, y=4

x=9, y=5

x=9.1, y=5.1

x=9.123, y=5.123

x=9.26704, y=5.26704

x=9.1415926535, y=5.1415926535

.

.

etc.