Question

Is the relation a function or not? If it is a function, determine if it is one-to-one, onto, both, or neither. Explain. { (2, 4); (4, -2); (1, 5); (0, 3) }

Answer 1

yes ; it's a function

Explanation:

The relation given in the exercise is a function since each input element or domain has its only output element or range for example;

2 → 4 ( 2 corresponds to only 4)

4 → -2 ( 4 corresponds to only -2)

1 → 5 ( 1 corresponds to only 5)

0 → 3 ( 0 corresponds to only 3)