Find the domain and range of the relation: {(0, 9.1), (10, 6.7), (20, 10.7), (30, 13.2), (42, 21.7)}.

Use the relation {(3,5),(-4,6),(3,8), (2,4), (1,3). I need help finding the domian and the range!

Given that A = {1, 2, 3, 4, 5} and B = {x, y, z}, determine which of the sets of ordered pairs represents a function from A to B. Explain the reason(s) why or why not for each i)  {(1, z), (2, x), (3, y), (2, x)} ii)  {(1, z), (3, y), (2, x), (4, x), (5, 5)} iii)  {(1, y), (2, y), (5, x), (3, y), (4, y)} Which of the following graphs represent y as a functionof x? Explain the reason(s) why or why not for each ii)

Pls help ASAP on both pls