Question

What is the domain of the relation

Answer 1

the answer is d. domain is the x axis (horizontal).

Answer 2

The correct option is 4.

Explanation:

From the given graph it is clear that the coordinates of points are A(1,-5), B(0,-2), C(1,0), D(2,3), E(1,5).

It means the given relation is defined as

`R=\{(1,-5),(0,-2),(1,0),(2,3),(1,5)\}`

The set of input values (x-values) is called domain.

The input values of the given relation are 1, 0, 1, 2, 1. A set contains distinct element, so the set of input values is

Input
`=\{0,1,2\}`

Domain of the relation is

`Domain=\{0,1,2\}`

Therefore the correct option is 4.