A function, đť‘“(đť‘Ą) relates an input and an output. The equation 𝑦 = đť‘Ą² can be written as the function đť‘“(đť‘Ą) = đť‘Ą². The notation for a function is đť‘“(đť‘Ą) or đť‘”(đť‘Ą) or â„Ž(đť‘Ą) and so on. Sometimes ...
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