Question

Domain

12
9
16
Range
-20
20
12
Is this relation a function?

Answer 1

The relation is a function since every input has a distinct outcome.

To solve this problem

We must determine whether every input from the domain corresponds to a single output from the range.

Although the supplied relation isn't stated in pairs, we can still look for repeating inputs if we treat the first number in each list as the input and the matching second number as the output.

Domain: {12, 9, 16}

Range: {-20, 20, 12}

Observing the lists that are provided:

• 12 is connected to -20
• 9 and 20 are related.
• There is a connection between 16 and 12.

So, The relation is a function since every input has a distinct outcome.