Question

select the correct choices that complete the following sentence. a dropdown is a relationship between quantities referred to as inputs and outputs, in which every dropdown is paired up with one and only one dropdown

Explanation:

To solve this, we recall the definition of a function in mathematics. A function is a relationship where every input (usually called the domain element or independent variable) is paired with exactly one output (range element or dependent variable).

Step 1: First Dropdown (A)

The first blank should be "function" because the description matches the definition of a function.

Step 2: Second Dropdown

The second blank refers to the input, which is often called the "input" or "independent variable" or "domain element". But in the context of function definition, the term associated with the input in the pairing is "input" (or "domain value", "independent variable"). However, the standard terminology for the first part of the pairing (the one that has only one output) is the "input" (or "domain element").

Step 3: Third Dropdown

The third blank refers to the output, which is the "output" (or "range element", "dependent variable").

Answer:

First dropdown: function
Second dropdown: input
Third dropdown: output

(Note: If the dropdown options have specific terms like "function", "input", "output" or synonyms like "domain", "range" etc., the correct selections would be "function" for the first, "input" (or "domain", "independent variable") for the second, and "output" (or "range", "dependent variable") for the third, based on the options provided.)