Please check my answer

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

a. {8,10,4,6,-9}

b.{-4,1,5,8)

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

d. no domain exists

I think that it is A, Am I right? Thanks

1 answer

The domain is the set of all the 1st elements of the pairs.

A is the range.