Choose the best word to complete the blank. The input value of the function is the blank. Product, substitute, Independent variable, And difference

The input value of the function is the independent variable

Step-by-step explanation:

A function is a relation in which each input value has only one output value. An input is the independent variable, whereas the output value is the dependent variable, and it is depends on the value of the input. The set of all input values in the function is called the domain. And the set of all output values in the function is called the range Hence the input value of the function is the independent variable. Hence the option Independent Variable is correct