What is the function of a line in writing a function notation. Give a simple example
The function of a line in writing a function notation is to indicate the relationship between the input and output variables. It separates the input variable from the actual function expression.
For example, consider the function "f" that takes an input value "x" and squares it. The function notation for this would be:
f(x) = x^2
The line in this notation separates the input variable "x" from the function expression "x^2". It helps to identify that "f" is a function of "x" and "x^2" represents the output value of the function given the input "x".