Question

The domain of the following relation: R: {(-3,4), (5,0), (1,5), (2,8), (5,10)}

Answer 1

{-3,1,2,5}

Explanation:

Given that a set contains an ordered pair (x,y) such that x = domain of the relation while y = range of the relation .

Here x can have two or more than two ranges which mean a value of x can have two or more than two images.

So the domain of the given relation R will contain the first elements from each ordered pair.

Therefore, the domain will be {-3, 5, 1, 2}.

(omitting one 5 since its occurring twice)