Question

The domain of the following relation: R: {(-4,8),(8,10),(5,4),(1,6),(5,-9) } is

Answer 1

{-4, 8, 5, 1, 5}

Explanation:

In a set of ordered pairs, the domain is the set of the first number in every pair.

If the set of ordered pairs is {(-4,8), (8,10), (5,4), (1,6), (5,-9)},

the domain is { -4, 8, 5, 1, 5}