Question

choose the correct terms from the drop - down lists to complete the sentence.
a \boxed{} is a relation that has exactly one element in its \boxed{} for every value in its \boxed{}.
options: function, range, domain

Explanation:

To complete the sentence, we recall the definitions: A function is a relation where each element in the domain (input set) has exactly one element in the range (output set). So the first blank (A) is "function", the second blank (for the set with one element per domain value) is "range", and the third blank (the set of input values) is "domain".

Answer:

A. function is a relation that has exactly one element in its range for every value in its domain