In composite functions, the output of one function serves as the input for another function. This means that the output value of the first function will determine the input value for the second function, and so on if there are multiple functions being composed together. The relationship between input and output values in composite functions is a dependent one, where the output value of one function directly impacts the input value of the next function in the sequence. This interconnected relationship is what allows for the composition of functions to be evaluated and analyzed in various contexts.
