👉 Learn how to graph piecewise functions. A piecewise function is a function which has more than one sub-function for ...

👉 Learn how to graph the square root function. Like other functions, to graph the square root function, we first graph the ...

A function, 𝑓(𝑥) relates an input and an output. The equation 𝑦 = 𝑥² can be written as the function 𝑓(𝑥) = 𝑥². The notation for a function is 𝑓(𝑥) or 𝑔(𝑥) or ℎ(𝑥) and so on. Sometimes ...