Question

Fill in the blanks below in order to justify whether or not the mapping shown represents a function.
Set A
7
-4
0
-1
Set B
9
4
8
Answer
Attempt 2 out of 2

The mapping diagram above
represents
a function since
for each number
in
Set A (the output)
there
are multiple mappings

to Set B (the input)
.

Answer 1

Correct completion:

The mapping diagram above represents a function since for each number in Set A (the input) there is exactly one mapping to Set B (the output).

Explanation: A mapping is a function iff every element of the domain (Set A) is assigned to exactly one element of the codomain (Set B).