Question

What is the domain of the function: {(1, 2); (2, 4); (3, 6); (4, 8)}?

A.
{6, 8}

B.
{2, 4, 6, 8}

C.
{1, 2, 3, 4, 6, 8}

D.
{1, 2, 3, 4}

Answer 1

Take all the first components which give the domain
1, 2, 3, 4

Answer 2

Yes, domain is all possible x values, which is stated above ^