Respuesta :

altavistard
Look at the first element of each point:

{4, 1, 0, 1}   (do not write 4 twice, even tho' 4 shows up twice).

This is NOT a function, altho' it still is a relationship.  Why?   Because 4 shows up as an input twice.  In the case of a function, no input shows up more than once.

MrRoyal

The domain of a relation is the set of input values, the relation can take

The domain of the relation is {0,1,4}

The ordered pair of the relation is given as:

( 4,2),(1,1),(0,0),(1,-1),(4,-2)

Rewrite as:

(x,y) = ( 4,2),(1,1),(0,0),(1,-1),(4,-2)

Remove the y values

x, = { 4,1,0,1,4}

Remove repetitions

x, = {0,1,4}

Hence, the domain of the relation is {0,1,4}

Read more about domain at:

https://brainly.com/question/1770447

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