Question

What is the domain of the following relation?

R = {(-2, 4), (1, 2), (3, 7)}

{2, 3, 4}
{2, 4, 7}
{-2, 1, 2, 3, 4, 7}
{-2, 1, 3}

Answer 1

It's standard that the first element in the tuple is the input.

Answer 2

The Answer is {-2,1,3}

Because domain refers to the x values and because this is a bounded graph and also linear it would be all the X values therefore it will be {-2,1,3}

Hope this helped ^.^