Which of the following best defines a function?

a function is a special type of relation for which there is a rule that pairs each input with exactly one output.

a function is a relationship that defines the connection between two variables.

a function is a set of ordered pairs in which no y-value repeats.

a function pairs input and output values with no particular pattern.

A function is a special type of relation for which there is a rule that pairs each input with exactly one output.

Step-by-step explanation:

Functions have input (x) and output (y). For each x value there can only be one y value. :) repeating x values means it isn't a function. its okay to have repeating y values.

We can cancel out the last two for this reason above the second choice is wrong because i say so (=^w^=)

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

step-by-step explanation: