Question

What is a function rule?

Answer 1

A function rule is where you express the dependent variable, y, in terms of the independent variable, x.

Answer 2

The process used to change input and output. Usually, it is given as a formula. For example, the statement f(x) = 3x + 5 gives the “rule” of the function (multiply the input by 3, add 5, and you get your output)