Question

What are the domain and range of the relation R: {(-2, -1), (0, 5), (5, 7), (8, 9)}?

Domain: {-2, 0, 5, 8}, Range: {-1, 5, 7, 9}
Domain: {-1, 5, 7, 9}, Range: {-2, 0, 5, 8}
Domain: {all real numbers}, Range: {all real numbers}
Domain: {(-2, -1), (0, 5), (5, 7), (8, 9)}, Range: { }

Answer 1

Domain is all the x values and range is all the y values

Answer 2

Domain is the set of all first elements in the relation.

Range is the set of all second elements in the relation.

Answer 3

Is it A?

Answer 4

Yep... correct :)