{(-3,-7),(-2,-7),(4,-7),(5,-7)}
Is this relation a function?
if each first element is unique, it is a function.
yes it's b/c the first element of each pair is unique
Is 2,7 3,7 4,7 a function
To determine if a relation is a function, we need to check if each element in the domain (the set of all x-values) has only one corresponding element in the range (the set of all y-values).
Given the relation {(-3, -7), (-2, -7), (4, -7), (5, -7)}, all the elements in the domain have the same corresponding y-value in the range, which is -7. Thus, each x-value has only one associated y-value, satisfying the definition of a function.
Therefore, yes, this relation is a function.