Question

Look at this set of ordered pairs:

(15, 7)
(0, 7)
(13, –12)

Is this relation a function?

Answer 1

To determine if a relation is a function, we need to check whether each input (the first element of each ordered pair) is associated with exactly one output (the second element of each ordered pair).

Let's analyze the given ordered pairs:

1. (15, 7)
2. (0, 7)
3. (13, -12)

The inputs are 15, 0, and 13. Each of these inputs is unique and is associated with exactly one output:

- Input 15 corresponds to output 7.
- Input 0 corresponds to output 7.
- Input 13 corresponds to output -12.

Since no input is repeated and each input corresponds to a single output, this relation is indeed a function.