During the fourteenth week of Foundations of Mathematics and Pre-Calculus, I learned how to use Function Notation to determine values. If the function “f” maps an element x in the domain to an element y in the range, you can write f: x -> y. Note: f(x) does not mean f times x. To determine values using Function Notation, a formula must first be given. Once the formula is given, you can determine the x if f(x) is given, or you can determine the value of f(x) if x is given. If f(x) is given, replace it with the variable. If f(x) is not given, but a number that is equal to it, use the formula of the function to determine f(x). You can write a function in the form f(x) = 2x + 1, it also means y = 2x + 1.
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