What are the domain and range for this list of ordered pairs:
{(15, 4), (7,-5), (13,-7), (-3,4)}
Domain: {15, 4, 7, -5}
Range: {13, -7, -3,4}
Domain: {-7, -5,4}
Range: {-3, 7, 13, 15)
Domain: {-3, 7, 13, 15}
Range: {-7, -5,4}
Domain: {15, 7, 13, -3}
Range: {4, -5, -7, -3}