Question

Look at this set of ordered pairs:

(7, 10)
(7, –15)
(11, 15)
(13, 15)

Is this relation a function?

Answer 1

To determine if a relation is a function, we need to check if each input (or first element of the ordered pairs) corresponds to exactly one output (or second element).

Let's analyze the given ordered pairs:

1. (7, 10)
2. (7, –15)
3. (11, 15)
4. (13, 15)

Here, we see that the input "7" corresponds to two different outputs: "10" and "–15". Since a function cannot have the same input mapping to multiple outputs, this relation is **not a function**.