For a relation to be a function, each x-value can only be paired with one y-value, but one y-value can be paired with multiple x-values.
(2,7),(3,10),(1,6)
Examining the ordered pairs, we can see that there is no x-value with multiple y-values. Therefore, the relation is a function.
Now let's look for the domain and range of the given coordinate pairs. The domain of a function is found by listing the relation's x-values. The range is found by listing the relation's y-values.
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