How do these functions differ from functions you have used in algebra in the past

All the functions produce only one outcome for a given input. A function cannot produce more than one outcomes at a single input. In other words, for each value of x on its domain, function can will produce a distinct value of y. Any vertical line drawn on the graph of a function will never meet the graph more than once. A function cannot have more than one horizontal asymptotes. A function will have either no horizontal asymptote or just one asymptote.

These functions are often seen in a progression from least complicated (linear) to most complicated (piecewise with nonlinear parts). And then there are other types of functions in-between: exponential, quadratic, polynomial, radical, and logarithmic. But with all their differences and unique properties, these share a common trait of being functions that we can graph in a coordinate plane.

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its definatley   this on your answer choice?