Answer:
The mapping diagram above <u>is</u> a function since <u>there are no two values (integers) in the range (Set B)</u> where there <u>is only one value (integer) in the domain (Set A)</u> <u>mapped unto them</u>
Step-by-step explanation:
By definition a function is an association between the individual elements within two sets such that all element in one set is mapped to precisely one element of the other set
In the given example, all the elements in Set A are mapped to exactly one element of the Set B
That is the function from A to B is the set C (-1, -4), (9, 5), (1, 4), whereby the first component of the ordered pair in the set C are the elements of the set A.
