Question

The domain of the following relation: R: {(-4, 3), (3, 6), (-2, 1), (3, 6)} is
Answer
{-4, 3, -2, 3}
{-4, -2, 3}
No domain exists
{1, 3, 6}

Answer 1

first option - domain consists of the first values of the pairs of values

Answer 2

Actually, it's the second option since duplicates in a set are thrown out.


So the domain is {-4, -2, 3}, choice B

Answer 3

oh - ok - thanks jim

Answer 4

i didnt notice the duplicates

Answer 5

np it's ok, i've made the same mistake in the past many times myself