The point of the functional property is that for any pair in the set of ordered pairs, the first coordinate determines what the second one is. That's why you can write "G(x)" for any x in the domain ofG and not be ambiguous.
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Coordinates
A set of ordered pairs is a relation. Or Just simply "Coordinates"
The set of all possible second coordinates of the ordered pair ina function is called the image of the function and is often denoted im(f). In other words, the image is all possible outputs of a function
coordinates
It is the set of all ordered pair of the from (x, y) where x ÃŽ A and y ÃŽ B.