Question

Fill in the blanks below in order to justify whether or not the mapping shown represents a function.
Set A
-1
1
-2
Set B
4
5
8
Answer
Attempt 1 out of 2

The mapping diagram above
a function since
in
where there

.

Answer 1

I can’t see the arrows in the diagram, so I don’t know which case applies. Here are the two possible completed sentences you can use depending on the diagram, and the rule to check:

If every element of A has exactly one arrow to B:
"The mapping diagram above is a function since each element in A is paired with exactly one element in B, where there are no elements of A that map to more than one element of B."

If some element of A has two arrows to different elements of B:
"The mapping diagram above is not a function since some element in A is mapped to more than one element in B, where each element of the domain must map to exactly one element of the codomain."

Tell me which arrows go from A to B (or paste the diagram) and I’ll fill in the exact wording for this specific mapping.