How do you Describe how to write 3x plus 2y12 in function notation?

To write the expression (3x + 2y^{12}) in function notation, you can define a function (f) that takes (x) and (y) as inputs. For example, you can express it as (f(x, y) = 3x + 2y^{12}). This notation indicates that (f) is a function of two variables, (x) and (y).