when ur given ordered pairs, how do you determine if the relations is a function

it is a function if no two pairs have the same first element.

Surely by now you have reviewed the topic.

no one?

no i havent... thats why im asking

To determine if a relation is a function when given ordered pairs, you need to check if there are any repeated x-values. Here's how you can do it:

1. Begin by examining each ordered pair. An ordered pair consists of two values: the x-value (input) and the y-value (output).

2. Make a list of all the x-values in the ordered pairs. If there are any repeated x-values, this indicates that the relation may not be a function.

3. If there are no repeated x-values, it means that each input (x-value) corresponds to exactly one unique output (y-value), and the relation is a function.

4. You can also visualize the relation on a coordinate plane by graphing the ordered pairs. If you notice that any vertical line intersects the graph at more than one point, then the relation is not a function. However, if each vertical line intersects the graph at most one point, the relation is a function.

Remember that a function is a relation where each input (x-value) corresponds to exactly one unique output (y-value). Therefore, if you find any repeated x-values, the relation is not a function. Otherwise, if no repeated x-values are found, the relation is indeed a function.