Question

Which of the following relations is a function?

A.
(5, 10), (-9, 3), (0, 9), (0, -5)

B.
(10, 5), (3, -9), (9, 0), (10, -5)

C.
(5, 10), (-9, 3), (0, 9), (-5, 10)

D.
(0, 10), (-9, 3), (0, 9), (-9, -5)

Answer 1

A.

(5, 10), (-9, 3), (0, 9), (0, -5)

B.

(10, 5), (3, -9), (9, 0), (10, -5)

C.

(5, 10), (-9, 3), (0, 9), (-5, 10)

D.

(0, 10), (-9, 3), (0, 9), (-9, -5)

Step-by-step explanation: :D

Answer 2

Ans. C

Explanation:

every domain has different image in C.