Function Notation

Function notation is a way to represent a function using symbols, typically written as f(x), where 'f' is the name of the function and 'x' is the input variable.

f(x) represents the output of the function for a given input x. It is often equivalent to y in the equation of a function.

f(2) = 2(2) + 1 = 5.

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

The range of a function is the set of all possible output values (f(x) or y-values) that the function can produce.

f(0) = -3(0) + 3 = 3.

It means that when the input to the function f is 'a', the output is 'b'.

f(-4) = -2(-4) - 8 = 8 - 8 = 0.

f(3) = 3 - 2 = 1.

Function notation provides a clear and concise way to express mathematical relationships and operations involving functions.