Question

A = {5, 10, 15, 20}, B = {2, 4, 6, 8, 10}. Out of the following, which is a function ?
(a) {(5, 2), (10, 4), (15, 6), (20, 9)}
(b) {(5, 2), (10, 4)}
(c) {(5, 2), (10, 4), (15, 6), (20, 10)}
(d) {(5, 1), (5, 10), (15, 6), (20, 9)}

Answer 1

Answer:

(c) Is the right option

Step-by-step explanation:

Because in (a) last digit was 9 but in function no 9 is not there so in (d) too and (b) has two value so that has low possibility