Q:

Determine which of the mapping diagrams represents a relation that is NOT a function.Answer A. is the first mappingAnswer B. is the second mappingAnswer C. is the third mapping Answer D. is the fourth mapping

Accepted Solution

A:
Answer:Answer A. i.e. the first mappingStep-by-step explanation:We know that,A function [tex]f:X\rightarrow Y[/tex] is a relation in which each and every element of X i.e. domain has a unique image in Y i.e. co-domain.So, according to the options, we see that,In the first mapping, element 2 is mapped to -3 and 5.This means that the element 2 does not have a unique image.So, this mapping cannot represent a function.Hence, first mapping is not a function.