Use the domain and range of each of the following relations to determine which is a function.

Question 2 options:

{(–4, 3), (–2, –1), (–4, 8)}

{(–4, 3), (–2, –1), (–7, 8)}

{–4, –2, –7, 7}

{(–4, 3), (–2, –1), (–2, –8), (–7, 8)}