Question

What is the ordered pair that is a solution of the equation y = 2x - 4?

Answer 1

There is not a single ordered pair which is a solution to `y=2x-4`.
In general the ordered pairs would be `(x,2x-4)` for any choosen value of `x`

Explanation:

For example, the following would be valid ordered pair solutions:

with `x=0color(white)("xxxx")rarrcolor(white)("xx")(0,-4)`
with `x=1color(white)("xxxx")rarrcolor(white)("xx")(1,-2)`
with `x=2color(white)("xxxx")rarrcolor(white)("xx")(2,0)`
with `x=3color(white)("xxxx")rarrcolor(white)("xx")(3,2)`
with `x=-1color(white)("xx")rarrcolor(white)("xx")(-1,-6)`
with `x=-2color(white)("xx")rarrcolor(white)("xx")(-2,-8)`