Question

Which among the following is\are function(s)

• A.
• B.
• C.
• D.

Answer 1

Answer: (A), (B), (D)

The correct options are
A
B
D

In figure $\text{(iii)}$ element $D$ has two images $\left(2\text{and}3\right)$ and as per definition of function each element in set $A$ should have only one image.
So, only figure $\text{(iii)}$ does not represent a function.